diff --git a/hy/models/__init__.py b/hy/models/__init__.py
index 48ac02b..f2818c3 100644
--- a/hy/models/__init__.py
+++ b/hy/models/__init__.py
@@ -66,4 +66,4 @@ def replace_hy_obj(obj, other):
         return wrapped_obj.replace(other)
     else:
         raise TypeError("Don't know how to wrap a %s object to a HyObject"
-                        % (type obj))
+                        % type(obj))