diff --git a/tree/.local/bin/scap b/tree/.local/bin/scap
index 377b369..ab3f8b9 100755
--- a/tree/.local/bin/scap
+++ b/tree/.local/bin/scap
@@ -5,6 +5,11 @@ if [ "$XDG_SESSION_TYPE" != "wayland" ]; then
 	exit 1
 fi
 
+if ps -e | grep "slurp"; then
+	echo "slurp is already running"
+	exit 1
+fi
+
 DIMS="$(slurp)"
 
 grim -g "$DIMS" - | pbc