diff --git a/src/database/users.py b/src/database/users.py
index 379c6f8..745e311 100644
--- a/src/database/users.py
+++ b/src/database/users.py
@@ -136,7 +136,7 @@ async def fetch(cls, api_key: APIKey, user_db: AsyncConnection) -> Self | None:
         return None
 
     async def get_groups(self) -> list[UserGroup]:
-        if self._groups:
+        if self._groups is not None:
             return self._groups
 
         if self._database is None: