diff --git a/src/eynollah/model_zoo/model_zoo.py b/src/eynollah/model_zoo/model_zoo.py
index 054552a..3de8b6b 100644
--- a/src/eynollah/model_zoo/model_zoo.py
+++ b/src/eynollah/model_zoo/model_zoo.py
@@ -313,4 +313,3 @@ class EynollahModelZoo:
             for needle in list(self._loaded.keys()):
                 if isinstance(self._loaded[needle], Predictor):
                     self._loaded[needle].shutdown()
-                del self._loaded[needle]