diff --git a/bin/sc b/bin/sc
index db087a0..0c0f721 100755
--- a/bin/sc
+++ b/bin/sc
@@ -99,6 +99,7 @@ end
 set --append subcmds window
 set window_help '[fps=5]' 'record clicked window'
 function window -a fps
+    _stop
     test -z $fps && set fps 5
     set wininfo (xwininfo)
     for line in $wininfo