diff --git a/tests/regression/apparmor/prologue.inc b/tests/regression/apparmor/prologue.inc
index 3bbea9b8e..d5b34b9e7 100755
--- a/tests/regression/apparmor/prologue.inc
+++ b/tests/regression/apparmor/prologue.inc
@@ -152,7 +152,7 @@ parser_supports()
 # $@: rules to test
 requires_parser_support()
 {
-	local res=$(parser_supports $@)
+	local res=$(parser_supports "$@")
 	if [ "$res" != "true" ] ; then
 		echo "$res. Skipping tests ..."
 		exit 0