diff --git a/litellm/proxy/_experimental/mcp_server/mcp_server_manager.py b/litellm/proxy/_experimental/mcp_server/mcp_server_manager.py
index 3b4d6abf57..1458381c02 100644
--- a/litellm/proxy/_experimental/mcp_server/mcp_server_manager.py
+++ b/litellm/proxy/_experimental/mcp_server/mcp_server_manager.py
@@ -160,7 +160,9 @@ class MCPServerManager:
             _mcp_info: MCPInfo = mcp_server.mcp_info or {}
             
             # Use helper to deserialize environment dictionary
-            env_dict = _deserialize_env_dict(mcp_server.env)
+            # Safely access env field which may not exist on Prisma model objects
+            env_data = getattr(mcp_server, 'env', None)
+            env_dict = _deserialize_env_dict(env_data)
             
             new_server = MCPServer(
                 server_id=mcp_server.server_id,