diff --git a/eqa_insert.py b/eqa_insert.py
index 9a179c1..93bd3c3 100644
--- a/eqa_insert.py
+++ b/eqa_insert.py
@@ -26,7 +26,6 @@ class EnhancedQAInsertConfig:
         self.source_type = 'file'
         # config for sentence_embedding
         self.model = 'all-MiniLM-L6-v2'
-        self.dim = None
         self.openai_api_key = None
         self.customize_embedding_op = None
         self.normalize_vec = True
@@ -70,9 +69,6 @@ def _get_embedding_op(config):
 
 @AutoPipes.register
 def enhanced_qa_insert_pipe(config):
-    if not config:
-        config = EnhancedQAInsertConfig()
-
     text_load_op = ops.text_loader()
 
     allow_triton, sentence_embedding_op = _get_embedding_op(config)
@@ -97,7 +93,7 @@ def enhanced_qa_insert_pipe(config):
     )
 
     if config.normalize_vec:
-        p = p.map('vec', 'vec', ops.towhee.np_normalize())
+        p = p.map('embedding', 'embedding', ops.towhee.np_normalize())
 
     return (p.map(('doc', 'sentence', 'embedding'), 'mr', insert_milvus_op)
             .output('mr')