diff --git a/quart_openapi/pint.py b/quart_openapi/pint.py
index 1459062..a7c3a84 100644
--- a/quart_openapi/pint.py
+++ b/quart_openapi/pint.py
@@ -457,6 +457,8 @@ def register(self, app: Pint, first_registration: bool, *, url_prefix: Optional[
         """override the base :meth:`~quart.Blueprint.register` method to add the resources to the app registering
         this blueprint, then call the parent register method
         """
+        if not isinstance(app, Pint):
+            raise TypeError(f"Please use PintBlueprint with instance of Pint not {type(app)}")
         prefix = url_prefix or self.url_prefix or ''
         app._resources.extend([(res, f'{prefix}{path}', methods) for res, path, methods in self._resources])
         super().register(app, first_registration, url_prefix=url_prefix)