diff --git a/Marlin/Marlin.ino b/Marlin/Marlin.ino
index 7793274027..08f7c9f685 100644
--- a/Marlin/Marlin.ino
+++ b/Marlin/Marlin.ino
@@ -50,7 +50,7 @@
 
 #if ENABLED(HAVE_TMCDRIVER)
   #include <SPI.h>
-  #if defined(STM32F7)
+  #ifdef STM32F7
     #include "src/HAL/HAL_STM32F7/TMC2660.h"
   #else
     #include <TMC26XStepper.h>
diff --git a/Marlin/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_sw_spi.cpp b/Marlin/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_sw_spi.cpp
index 927253a17b..78e9ea3eb2 100644
--- a/Marlin/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_sw_spi.cpp
+++ b/Marlin/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_sw_spi.cpp
@@ -55,7 +55,7 @@
 
 */
 
-#if defined (TARGET_LPC1768)
+#ifdef TARGET_LPC1768
 
 #include <U8glib.h>
 #include "SoftwareSPI.h"
@@ -125,4 +125,4 @@ uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val,
   return 1;
 }
 
-#endif  // TARGET_LPC1768
+#endif // TARGET_LPC1768
diff --git a/Marlin/src/libs/softspi.h b/Marlin/src/libs/softspi.h
index 9f81722d0c..b3afcc11d4 100644
--- a/Marlin/src/libs/softspi.h
+++ b/Marlin/src/libs/softspi.h
@@ -195,7 +195,7 @@ static const pin_map_t pinMap[] = {
 || defined(__AVR_ATmega324__)\
 || defined(__AVR_ATmega16__)
 
-#if defined(VARIANT_MIGHTY)
+#ifdef VARIANT_MIGHTY
 // Mighty Layout
 static const pin_map_t pinMap[] = {
   {&DDRB, &PINB, &PORTB, 0},  // B0  0