diff --git a/src/x11_window.c b/src/x11_window.c
index 297b975d..bfaa21e8 100644
--- a/src/x11_window.c
+++ b/src/x11_window.c
@@ -1163,6 +1163,10 @@ static void processEvent(XEvent *event)
         keycode = event->xkey.keycode;
 
     filtered = XFilterEvent(event, None);
+    if (filtered)
+    {
+        return;
+    }
 
     if (_glfw.x11.randr.available)
     {