diff --git a/tests/concepts/tconcepts_issues.nim b/tests/concepts/tconcepts_issues.nim
index 53076e142..65f6d4660 100644
--- a/tests/concepts/tconcepts_issues.nim
+++ b/tests/concepts/tconcepts_issues.nim
@@ -463,5 +463,7 @@ block misc_issues:
 
   proc sayHello(c: Thing) = echo(c.hello)
 
-  var a: Thing = Cat()
+  # used to be 'var a: Thing = Cat()' but that's not valid Nim code
+  # anyway and will be an error soon.
+  var a: Cat = Cat()
   a.sayHello()