diff --git a/backend/open_webui/utils/models.py b/backend/open_webui/utils/models.py
index 975f8cb09..a2c0eadca 100644
--- a/backend/open_webui/utils/models.py
+++ b/backend/open_webui/utils/models.py
@@ -142,7 +142,7 @@ async def get_all_models(request):
                     custom_model.base_model_id == model["id"]
                     or custom_model.base_model_id == model["id"].split(":")[0]
                 ):
-                    owned_by = model["owned_by"]
+                    owned_by = model.get("owned_by", "unknown owner")
                     if "pipe" in model:
                         pipe = model["pipe"]
                     break