diff --git a/graphene/types/base.py b/graphene/types/base.py
index 129834b0..84cb377a 100644
--- a/graphene/types/base.py
+++ b/graphene/types/base.py
@@ -38,7 +38,7 @@ class BaseType(SubclassWithMeta):
     def __init_subclass_with_meta__(
         cls, name=None, description=None, _meta=None, **_kwargs
     ):
-        assert "_meta" not in cls.__dict__, "Can't assign directly meta"
+        assert "_meta" not in cls.__dict__, "Can't assign meta directly"
         if not _meta:
             return
         _meta.name = name or cls.__name__