diff --git a/glfw/x11_window.c b/glfw/x11_window.c
index 68fdb31f4..04d14c39f 100644
--- a/glfw/x11_window.c
+++ b/glfw/x11_window.c
@@ -1686,6 +1686,7 @@ static void processEvent(XEvent *event)
         case DestroyNotify:
             return;
     }
+#undef UPDATE_KEYMAP_IF_NEEDED
 }