diff --git a/tests/ui/precondition-checks/cfg-ub-checks-default.rs b/tests/ui/precondition-checks/cfg-ub-checks-default.rs
index 57a195231474b..b672589d02a23 100644
--- a/tests/ui/precondition-checks/cfg-ub-checks-default.rs
+++ b/tests/ui/precondition-checks/cfg-ub-checks-default.rs
@@ -1,5 +1,5 @@
 //@ run-pass
-//@ revisions YES NO
+//@ revisions: YES NO
 //@ [YES] compile-flags: -Cdebug-assertions=yes
 //@ [NO] compile-flags: -Cdebug-assertions=no