diff --git a/find_or_open.sh b/find_or_open.sh
index 60d73e4..a787092 100755
--- a/find_or_open.sh
+++ b/find_or_open.sh
@@ -11,7 +11,6 @@ find_or_open(){
 }
 
 # this can either be sourced by buttons.sh or run as a standalone script
-# when running as a standalone, execute it:
-if [[ -n $1 ]]; then
-  find_or_open "$1"
+if [ "${BASH_SOURCE[0]}" = "$0" ] && [[ -n $1 ]]; then
+   find_or_open "$1"
 fi