diff --git a/screenshot.sh b/screenshot.sh
index 95a09e0..d5c3416 100755
--- a/screenshot.sh
+++ b/screenshot.sh
@@ -15,6 +15,10 @@ SCR_LAST=`ls -t $DIR/$DAY/*.png | head -n1`
 # do a screenshot
 if [ "$XDG_CURRENT_DESKTOP" = "KDE" ]
 then
+  if pgrep -x spectacle > /dev/null; then
+    echo "`date`: Spectacle is already running; skipping screenshot"
+    exit 0
+  fi
   spectacle -bn -o $SCR_NEW
 else
   import -window root $SCR_NEW