diff --git a/Marlin/M100_Free_Mem_Chk.cpp b/Marlin/M100_Free_Mem_Chk.cpp
index d7f38aa2d..b1d0bedf2 100644
--- a/Marlin/M100_Free_Mem_Chk.cpp
+++ b/Marlin/M100_Free_Mem_Chk.cpp
@@ -50,7 +50,7 @@
 
 #if ENABLED(M100_FREE_MEMORY_WATCHER)
 
-#define M100_FREE_MEMORY_DUMPER     // Enable for the `M110 D` Dump sub-command
+#define M100_FREE_MEMORY_DUMPER     // Enable for the `M100 D` Dump sub-command
 #define M100_FREE_MEMORY_CORRUPTOR  // Enable for the `M100 C` Corrupt sub-command
 
 #include "Marlin.h"