diff --git a/gtk2_ardour/artest b/gtk2_ardour/artest
index e7603b89bf..0e88049427 100755
--- a/gtk2_ardour/artest
+++ b/gtk2_ardour/artest
@@ -26,7 +26,7 @@ run_tests () {
 }
 
 if [ $# -gt 0 ]; then
-	run_tests $1 $2 $3
+	run_tests "$1" "$2" "$3"
 	exit
 fi