diff --git a/kdesktop/lock/main.cc b/kdesktop/lock/main.cc
index c05766e91..479760c73 100644
--- a/kdesktop/lock/main.cc
+++ b/kdesktop/lock/main.cc
@@ -53,6 +53,9 @@ bool in_internal_mode = FALSE;
 
 bool MyApp::x11EventFilter( XEvent *ev )
 {
+    if (ev->type == ButtonPress || ev->type == ButtonRelease || ev->type == MotionNotify) {
+        emit mouseInteraction(ev);
+    }
     if (ev->type == XKeyPress || ev->type == ButtonPress) {
         emit activity();
     }