diff --git a/t/spectest.data b/t/spectest.data
index 096dd54e976..068f939f6c0 100644
--- a/t/spectest.data
+++ b/t/spectest.data
@@ -150,6 +150,7 @@ S04-statements/until.t
 S04-statements/while.t
 S05-capture/dot.t
 S05-capture/named.t
+S05-grammar/action-stubs.t
 S05-grammar/inheritance.t
 S05-grammar/namespace.t
 S05-grammar/parse_and_parsefile.t