diff --git a/src/Keyboardio-LEDEffect-Numlock.h b/src/Keyboardio-LEDEffect-Numlock.h
index b6af6d55..8a71f8fc 100644
--- a/src/Keyboardio-LEDEffect-Numlock.h
+++ b/src/Keyboardio-LEDEffect-Numlock.h
@@ -4,6 +4,9 @@
 #include "Keyboardio-Macros.h"
 #include "LEDUtils.h"
 
+#define TOGGLENUMLOCK 0
+#define Key_ToggleNumlock M(TOGGLENUMLOCK)
+
 class NumLock_ : LEDMode {
  public:
   NumLock_ (void);