diff --git a/lib/ansible/playbook/role/__init__.py b/lib/ansible/playbook/role/__init__.py
index 52cc12e4eaf..3e5aa7d5d4b 100644
--- a/lib/ansible/playbook/role/__init__.py
+++ b/lib/ansible/playbook/role/__init__.py
@@ -208,7 +208,7 @@ class Role(Base, Become, Conditional, Taggable):
             if self._loader.path_exists(main_file):
                 return self._loader.load_from_file(main_file)
             elif main is not None:
-                raise AnsibleParserError("Could not find specified file in role: %s" % main)
+                raise AnsibleParserError("Could not find specified file in role: %s/%s" % (subdir,main))
         return None
 
     def _resolve_main(self, basepath, main=None):