diff --git a/mockups/factory.py b/mockups/factory.py
index 98dc5a8..733fb2b 100644
--- a/mockups/factory.py
+++ b/mockups/factory.py
@@ -91,6 +91,7 @@ def get_generator(self, field, **kwargs):
             for cls in field.__class__.__mro__:
                 if cls in self.fieldclass_to_generator:
                     obj = self.fieldclass_to_generator.get(cls)
+                    break
         else:
             return None # No matching generator found