diff --git a/bentoml_cli/worker/runner.py b/bentoml_cli/worker/runner.py
index 628df6269e..e63780eeca 100644
--- a/bentoml_cli/worker/runner.py
+++ b/bentoml_cli/worker/runner.py
@@ -110,7 +110,7 @@ def main(
 
     # setup context
     if service.tag is None:
-        component_context.bento_name = f"{service.__class__}"
+        component_context.bento_name = f"{service.__class__.__name__}"
         component_context.bento_version = "not available"
     else:
         component_context.bento_name = service.tag.name