diff --git a/bin/tests/system/cds/setup.sh b/bin/tests/system/cds/setup.sh
index 7e6ef5cfb2..c3ec8a23fe 100644
--- a/bin/tests/system/cds/setup.sh
+++ b/bin/tests/system/cds/setup.sh
@@ -37,7 +37,7 @@ id2=$id2
 EOF
 
 tac() {
-	$PERL -e 'print reverse <>' "$@"
+	$PERL -e 'print reverse <>'
 }
 
 convert() {