diff --git a/src/keycodes.rs b/src/keycodes.rs
index 4ea80fe..14907c6 100644
--- a/src/keycodes.rs
+++ b/src/keycodes.rs
@@ -174,4 +174,5 @@ pub enum KeyCodes {
     RSHIFT,
     RALT,
     RGUI,
+    // Missing internal_special_keycodes (tmk_core/common/keycode.h)
 }