diff --git a/Marlin/src/HAL/DUE/HAL_MinSerial.cpp b/Marlin/src/HAL/DUE/MinSerial.cpp
similarity index 98%
rename from Marlin/src/HAL/DUE/HAL_MinSerial.cpp
rename to Marlin/src/HAL/DUE/MinSerial.cpp
index 93c4ed67d6..e5b3dbfe6f 100644
--- a/Marlin/src/HAL/DUE/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/DUE/MinSerial.cpp
@@ -25,7 +25,7 @@
 
 #if ENABLED(POSTMORTEM_DEBUGGING)
 
-#include "../shared/HAL_MinSerial.h"
+#include "../shared/MinSerial.h"
 
 #include <stdarg.h>
 
diff --git a/Marlin/src/HAL/LPC1768/HAL_MinSerial.cpp b/Marlin/src/HAL/LPC1768/MinSerial.cpp
similarity index 97%
rename from Marlin/src/HAL/LPC1768/HAL_MinSerial.cpp
rename to Marlin/src/HAL/LPC1768/MinSerial.cpp
index 57065c49ac..7a1c038c0b 100644
--- a/Marlin/src/HAL/LPC1768/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/LPC1768/MinSerial.cpp
@@ -26,7 +26,7 @@
 
 #if ENABLED(POSTMORTEM_DEBUGGING)
 
-#include "../shared/HAL_MinSerial.h"
+#include "../shared/MinSerial.h"
 #include <debug_frmwrk.h>
 
 static void TX(char c) { _DBC(c); }
diff --git a/Marlin/src/HAL/STM32/HAL_MinSerial.cpp b/Marlin/src/HAL/STM32/MinSerial.cpp
similarity index 99%
rename from Marlin/src/HAL/STM32/HAL_MinSerial.cpp
rename to Marlin/src/HAL/STM32/MinSerial.cpp
index b6e86b72da..d99ed9cd9b 100644
--- a/Marlin/src/HAL/STM32/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/STM32/MinSerial.cpp
@@ -28,7 +28,7 @@
 
 #if ENABLED(POSTMORTEM_DEBUGGING)
 
-#include "../shared/HAL_MinSerial.h"
+#include "../shared/MinSerial.h"
 #include "watchdog.h"
 
 /* Instruction Synchronization Barrier */
diff --git a/Marlin/src/HAL/STM32F1/HAL_MinSerial.cpp b/Marlin/src/HAL/STM32F1/MinSerial.cpp
similarity index 99%
rename from Marlin/src/HAL/STM32F1/HAL_MinSerial.cpp
rename to Marlin/src/HAL/STM32F1/MinSerial.cpp
index 0fc3d014d4..0f7e0d5f10 100644
--- a/Marlin/src/HAL/STM32F1/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/STM32F1/MinSerial.cpp
@@ -26,7 +26,7 @@
 
 #if ENABLED(POSTMORTEM_DEBUGGING)
 
-#include "../shared/HAL_MinSerial.h"
+#include "../shared/MinSerial.h"
 #include "watchdog.h"
 
 #include <libmaple/usart.h>
diff --git a/Marlin/src/HAL/shared/HAL_MinSerial.cpp b/Marlin/src/HAL/shared/MinSerial.cpp
similarity index 97%
rename from Marlin/src/HAL/shared/HAL_MinSerial.cpp
rename to Marlin/src/HAL/shared/MinSerial.cpp
index 9dda5fdf8c..2e718d83dc 100644
--- a/Marlin/src/HAL/shared/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/shared/MinSerial.cpp
@@ -19,7 +19,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
-#include "HAL_MinSerial.h"
+#include "MinSerial.h"
 
 #if ENABLED(POSTMORTEM_DEBUGGING)
 
diff --git a/Marlin/src/HAL/shared/HAL_MinSerial.h b/Marlin/src/HAL/shared/MinSerial.h
similarity index 100%
rename from Marlin/src/HAL/shared/HAL_MinSerial.h
rename to Marlin/src/HAL/shared/MinSerial.h
diff --git a/Marlin/src/HAL/shared/backtrace/backtrace.cpp b/Marlin/src/HAL/shared/backtrace/backtrace.cpp
index ad88de8385..33e8e65154 100644
--- a/Marlin/src/HAL/shared/backtrace/backtrace.cpp
+++ b/Marlin/src/HAL/shared/backtrace/backtrace.cpp
@@ -25,7 +25,7 @@
 #include "unwinder.h"
 #include "unwmemaccess.h"
 
-#include "../HAL_MinSerial.h"
+#include "../MinSerial.h"
 #include <stdarg.h>
 
 // Dump a backtrace entry
diff --git a/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp b/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
index a106ed2b05..deaf09d2c0 100644
--- a/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
+++ b/Marlin/src/HAL/shared/cpu_exception/exception_arm.cpp
@@ -54,7 +54,7 @@
 
 #include "exception_hook.h"
 #include "../backtrace/backtrace.h"
-#include "../HAL_MinSerial.h"
+#include "../MinSerial.h"
 
 #define HW_REG(X)  (*((volatile unsigned long *)(X)))