diff --git a/Marlin/src/pins/stm32f1/pins_CHITU3D_V5.h b/Marlin/src/pins/stm32f1/pins_CHITU3D_V5.h
index 33ec27ddb..6d87e6b14 100644
--- a/Marlin/src/pins/stm32f1/pins_CHITU3D_V5.h
+++ b/Marlin/src/pins/stm32f1/pins_CHITU3D_V5.h
@@ -94,7 +94,7 @@
 //
 #define CONTROLLER_FAN_PIN                  PD6   // BOARD FAN
 #define FAN_PIN                             PG13  // FAN
-#define FAN_PIN_2                           PG14
+#define FAN2_PIN                            PG14
 
 //
 // Misc
diff --git a/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h b/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
index 990d33b75..bdce23584 100644
--- a/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
+++ b/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
@@ -103,7 +103,7 @@
 //
 #define CONTROLLER_FAN_PIN                  PD6   // BOARD FAN
 #define FAN_PIN                             PG13  // FAN
-#define FAN_PIN_2                           PG14
+#define FAN2_PIN                            PG14
 
 //
 // Misc