diff --git a/ufw b/ufw
index 994645c..425ec0b 100755
--- a/ufw
+++ b/ufw
@@ -213,7 +213,7 @@ take_screenshot() {
 	}
 
 	(( "$flag_scn_fullscreen" )) || { scn_args+=( '-s' ); }
-	[[ "$cfg_scn_delay" ]] && { scn_args+=( "-d $cfg_scn_delay" ); }
+	[[ "$cfg_scn_delay" ]] && { scn_args+=( "-d" "$cfg_scn_delay" ); }
 
 	tmp_file="$(_mktemp "${cfg_tmp_dir}" ".${cfg_screenshot_ext}")"