diff --git a/libvo/x11_common.c b/libvo/x11_common.c
index 96cdc05b39..6a522bfda8 100644
--- a/libvo/x11_common.c
+++ b/libvo/x11_common.c
@@ -1597,8 +1597,7 @@ void xscreensaver_heartbeat(void)
     unsigned int time = GetTimerMS();
     XEvent ev;
 
-    if (mDisplay && xs_windowid &&
-        ((time - time_last) > 30000 || (time - time_last) < 0))
+    if (mDisplay && xs_windowid && (time - time_last) > 30000)
     {
         time_last = time;