diff --git a/overlay_experimental/X11_Hook.cpp b/overlay_experimental/X11_Hook.cpp
index 9ad5de8..81ec275 100644
--- a/overlay_experimental/X11_Hook.cpp
+++ b/overlay_experimental/X11_Hook.cpp
@@ -117,7 +117,7 @@ bool IgnoreEvent(XEvent &event)
         // MouseButton
         case ButtonPress: case ButtonRelease:
         // Mouse move
-        case MotionNotify: case ClientMessage:
+        case MotionNotify:
             return true;
     }
     return false;