diff --git a/Marlin/src/HAL/HAL_AVR/HAL.h b/Marlin/src/HAL/HAL_AVR/HAL.h
index a4c1355b52..fae5235be3 100644
--- a/Marlin/src/HAL/HAL_AVR/HAL.h
+++ b/Marlin/src/HAL/HAL_AVR/HAL.h
@@ -197,7 +197,7 @@ FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t freque
 #define HAL_timer_isr_epilogue(TIMER_NUM)
 
 /* 18 cycles maximum latency */
-#define HAL_STEP_TIMER_ISR \
+#define HAL_STEP_TIMER_ISR() \
 extern "C" void TIMER1_COMPA_vect (void) __attribute__ ((signal, naked, used, externally_visible)); \
 extern "C" void TIMER1_COMPA_vect_bottom (void) asm ("TIMER1_COMPA_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
 void TIMER1_COMPA_vect (void) { \
@@ -270,7 +270,7 @@ void TIMER1_COMPA_vect (void) { \
 void TIMER1_COMPA_vect_bottom(void)
 
 /* 14 cycles maximum latency */
-#define HAL_TEMP_TIMER_ISR \
+#define HAL_TEMP_TIMER_ISR() \
 extern "C" void TIMER0_COMPB_vect (void) __attribute__ ((signal, naked, used, externally_visible)); \
 extern "C" void TIMER0_COMPB_vect_bottom(void)  asm ("TIMER0_COMPB_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
 void TIMER0_COMPB_vect (void) { \
diff --git a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h
index 7e88835500..1b002469be 100644
--- a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h
+++ b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h
@@ -65,9 +65,9 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR  void TC3_Handler()
-#define HAL_TEMP_TIMER_ISR  void TC4_Handler()
-#define HAL_TONE_TIMER_ISR  void TC6_Handler()
+#define HAL_STEP_TIMER_ISR()  void TC3_Handler()
+#define HAL_TEMP_TIMER_ISR()  void TC4_Handler()
+#define HAL_TONE_TIMER_ISR()  void TC6_Handler()
 
 // --------------------------------------------------------------------------
 // Types
diff --git a/Marlin/src/HAL/HAL_DUE/Tone.cpp b/Marlin/src/HAL/HAL_DUE/Tone.cpp
index 34d5718884..292be1401f 100644
--- a/Marlin/src/HAL/HAL_DUE/Tone.cpp
+++ b/Marlin/src/HAL/HAL_DUE/Tone.cpp
@@ -45,7 +45,7 @@ void noTone(const pin_t _pin) {
   extDigitalWrite(_pin, LOW);
 }
 
-HAL_TONE_TIMER_ISR {
+HAL_TONE_TIMER_ISR() {
   static uint8_t pin_state = 0;
   HAL_timer_isr_prologue(TONE_TIMER_NUM);
 
diff --git a/Marlin/src/HAL/HAL_ESP32/HAL_timers_ESP32.h b/Marlin/src/HAL/HAL_ESP32/HAL_timers_ESP32.h
index 60b6dcfa84..7fbaa5222d 100644
--- a/Marlin/src/HAL/HAL_ESP32/HAL_timers_ESP32.h
+++ b/Marlin/src/HAL/HAL_ESP32/HAL_timers_ESP32.h
@@ -69,8 +69,8 @@ typedef uint64_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_TEMP_TIMER_ISR extern "C" void tempTC_Handler(void)
-#define HAL_STEP_TIMER_ISR extern "C" void stepTC_Handler(void)
+#define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler(void)
+#define HAL_STEP_TIMER_ISR() extern "C" void stepTC_Handler(void)
 
 extern "C" void tempTC_Handler(void);
 extern "C" void stepTC_Handler(void);
diff --git a/Marlin/src/HAL/HAL_LINUX/HAL_timers.cpp b/Marlin/src/HAL/HAL_LINUX/HAL_timers.cpp
index 5a59165f50..f7b46725af 100644
--- a/Marlin/src/HAL/HAL_LINUX/HAL_timers.cpp
+++ b/Marlin/src/HAL/HAL_LINUX/HAL_timers.cpp
@@ -32,8 +32,8 @@
  * This has many limitations and is not fit for the purpose
  */
 
-HAL_STEP_TIMER_ISR;
-HAL_TEMP_TIMER_ISR;
+HAL_STEP_TIMER_ISR();
+HAL_TEMP_TIMER_ISR();
 
 Timer timers[2];
 
diff --git a/Marlin/src/HAL/HAL_LINUX/HAL_timers.h b/Marlin/src/HAL/HAL_LINUX/HAL_timers.h
index 75ec68b0a8..9505fc568a 100644
--- a/Marlin/src/HAL/HAL_LINUX/HAL_timers.h
+++ b/Marlin/src/HAL/HAL_LINUX/HAL_timers.h
@@ -63,12 +63,12 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR  extern "C" void TIMER0_IRQHandler(void)
-#define HAL_TEMP_TIMER_ISR  extern "C" void TIMER1_IRQHandler(void)
+#define HAL_STEP_TIMER_ISR()  extern "C" void TIMER0_IRQHandler(void)
+#define HAL_TEMP_TIMER_ISR()  extern "C" void TIMER1_IRQHandler(void)
 
 // PWM timer
 #define HAL_PWM_TIMER
-#define HAL_PWM_TIMER_ISR  extern "C" void TIMER3_IRQHandler(void)
+#define HAL_PWM_TIMER_ISR()   extern "C" void TIMER3_IRQHandler(void)
 #define HAL_PWM_TIMER_IRQn
 
 
diff --git a/Marlin/src/HAL/HAL_LPC1768/HAL_timers.h b/Marlin/src/HAL/HAL_LPC1768/HAL_timers.h
index 8f2ee4bc16..e90cdf2488 100644
--- a/Marlin/src/HAL/HAL_LPC1768/HAL_timers.h
+++ b/Marlin/src/HAL/HAL_LPC1768/HAL_timers.h
@@ -88,8 +88,8 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR _HAL_TIMER_ISR(STEP_TIMER_NUM)
-#define HAL_TEMP_TIMER_ISR _HAL_TIMER_ISR(TEMP_TIMER_NUM)
+#define HAL_STEP_TIMER_ISR() _HAL_TIMER_ISR(STEP_TIMER_NUM)
+#define HAL_TEMP_TIMER_ISR() _HAL_TIMER_ISR(TEMP_TIMER_NUM)
 
 // Timer references by index
 #define STEP_TIMER _HAL_TIMER(STEP_TIMER_NUM)
diff --git a/Marlin/src/HAL/HAL_STM32/HAL_timers_STM32.h b/Marlin/src/HAL/HAL_STM32/HAL_timers_STM32.h
index 72b80ccce9..e92da9a5c8 100644
--- a/Marlin/src/HAL/HAL_STM32/HAL_timers_STM32.h
+++ b/Marlin/src/HAL/HAL_STM32/HAL_timers_STM32.h
@@ -137,8 +137,8 @@
 
 extern void Step_Handler(stimer_t *htim);
 extern void Temp_Handler(stimer_t *htim);
-#define HAL_STEP_TIMER_ISR void Step_Handler(stimer_t *htim)
-#define HAL_TEMP_TIMER_ISR void Temp_Handler(stimer_t *htim)
+#define HAL_STEP_TIMER_ISR() void Step_Handler(stimer_t *htim)
+#define HAL_TEMP_TIMER_ISR() void Temp_Handler(stimer_t *htim)
 
 // --------------------------------------------------------------------------
 // Types
diff --git a/Marlin/src/HAL/HAL_STM32F1/HAL_timers_STM32F1.h b/Marlin/src/HAL/HAL_STM32F1/HAL_timers_STM32F1.h
index 28e0693718..b17d8a44d3 100644
--- a/Marlin/src/HAL/HAL_STM32F1/HAL_timers_STM32F1.h
+++ b/Marlin/src/HAL/HAL_STM32F1/HAL_timers_STM32F1.h
@@ -85,9 +85,8 @@ timer_dev* get_timer_dev(int number);
 
 // TODO change this
 
-
-#define HAL_TEMP_TIMER_ISR extern "C" void tempTC_Handler(void)
-#define HAL_STEP_TIMER_ISR extern "C" void stepTC_Handler(void)
+#define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler(void)
+#define HAL_STEP_TIMER_ISR() extern "C" void stepTC_Handler(void)
 
 extern "C" void tempTC_Handler(void);
 extern "C" void stepTC_Handler(void);
diff --git a/Marlin/src/HAL/HAL_STM32F4/HAL_timers_STM32F4.h b/Marlin/src/HAL/HAL_STM32F4/HAL_timers_STM32F4.h
index cbf93fba50..a4c2ba6f44 100644
--- a/Marlin/src/HAL/HAL_STM32F4/HAL_timers_STM32F4.h
+++ b/Marlin/src/HAL/HAL_STM32F4/HAL_timers_STM32F4.h
@@ -65,13 +65,13 @@
 #ifdef STM32GENERIC
   extern void TC5_Handler();
   extern void TC7_Handler();
-  #define HAL_STEP_TIMER_ISR void TC5_Handler()
-  #define HAL_TEMP_TIMER_ISR void TC7_Handler()
+  #define HAL_STEP_TIMER_ISR() void TC5_Handler()
+  #define HAL_TEMP_TIMER_ISR() void TC7_Handler()
 #else
   extern void TC5_Handler(stimer_t *htim);
   extern void TC7_Handler(stimer_t *htim);
-  #define HAL_STEP_TIMER_ISR void TC5_Handler(stimer_t *htim)
-  #define HAL_TEMP_TIMER_ISR void TC7_Handler(stimer_t *htim)
+  #define HAL_STEP_TIMER_ISR() void TC5_Handler(stimer_t *htim)
+  #define HAL_TEMP_TIMER_ISR() void TC7_Handler(stimer_t *htim)
 #endif
 
 
diff --git a/Marlin/src/HAL/HAL_STM32F7/HAL_timers_STM32F7.h b/Marlin/src/HAL/HAL_STM32F7/HAL_timers_STM32F7.h
index b856edb3e8..34e56a2059 100644
--- a/Marlin/src/HAL/HAL_STM32F7/HAL_timers_STM32F7.h
+++ b/Marlin/src/HAL/HAL_STM32F7/HAL_timers_STM32F7.h
@@ -66,8 +66,8 @@
 
 extern void TC5_Handler();
 extern void TC7_Handler();
-#define HAL_STEP_TIMER_ISR  void TC5_Handler()
-#define HAL_TEMP_TIMER_ISR  void TC7_Handler()
+#define HAL_STEP_TIMER_ISR()  void TC5_Handler()
+#define HAL_TEMP_TIMER_ISR()  void TC7_Handler()
 
 // --------------------------------------------------------------------------
 // Types
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
index b733d1625f..79a854126e 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
@@ -72,8 +72,8 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR  extern "C" void ftm0_isr(void) //void TC3_Handler()
-#define HAL_TEMP_TIMER_ISR  extern "C" void ftm1_isr(void) //void TC4_Handler()
+#define HAL_STEP_TIMER_ISR()  extern "C" void ftm0_isr(void) //void TC3_Handler()
+#define HAL_TEMP_TIMER_ISR()  extern "C" void ftm1_isr(void) //void TC4_Handler()
 
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
 
diff --git a/Marlin/src/HAL/HAL_TEENSY35_36/HAL_timers_Teensy.h b/Marlin/src/HAL/HAL_TEENSY35_36/HAL_timers_Teensy.h
index bac4332ac1..fed256452a 100644
--- a/Marlin/src/HAL/HAL_TEENSY35_36/HAL_timers_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY35_36/HAL_timers_Teensy.h
@@ -71,8 +71,8 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR  extern "C" void ftm0_isr(void) //void TC3_Handler()
-#define HAL_TEMP_TIMER_ISR  extern "C" void ftm1_isr(void) //void TC4_Handler()
+#define HAL_STEP_TIMER_ISR()  extern "C" void ftm0_isr(void) //void TC3_Handler()
+#define HAL_TEMP_TIMER_ISR()  extern "C" void ftm1_isr(void) //void TC4_Handler()
 
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
 
diff --git a/Marlin/src/module/stepper.cpp b/Marlin/src/module/stepper.cpp
index 56e30bdcbe..a5b86631f9 100644
--- a/Marlin/src/module/stepper.cpp
+++ b/Marlin/src/module/stepper.cpp
@@ -1246,7 +1246,7 @@ void Stepper::set_directions() {
  * Directly pulses the stepper motors at high frequency.
  */
 
-HAL_STEP_TIMER_ISR {
+HAL_STEP_TIMER_ISR() {
   HAL_timer_isr_prologue(STEP_TIMER_NUM);
 
   Stepper::isr();
diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
index 46e05f58ff..d9920c74b0 100644
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@@ -2295,7 +2295,7 @@ void Temperature::readings_ready() {
  *  - For ENDSTOP_INTERRUPTS_FEATURE check endstops if flagged
  *  - Call planner.tick to count down its "ignore" time
  */
-HAL_TEMP_TIMER_ISR {
+HAL_TEMP_TIMER_ISR() {
   HAL_timer_isr_prologue(TEMP_TIMER_NUM);
 
   Temperature::isr();