diff --git a/coder_directory_api/engines/mongo_engine.py b/coder_directory_api/engines/mongo_engine.py
index 278dc73..b026cbf 100644
--- a/coder_directory_api/engines/mongo_engine.py
+++ b/coder_directory_api/engines/mongo_engine.py
@@ -31,7 +31,7 @@ def __init__(self, collection: str, key_manager: bool =True) -> None:
         if key_manager:
             try:
                 self._max_id = self._set_max_id()
-            except (AttributeError, ValueError):
+            except IndexError:
                 self._max_id = 1
 
     def _set_max_id(self) -> int: