diff --git a/ieemoo-ai-searchv2.py b/ieemoo-ai-searchv2.py
index 5dbfb92..da1b4a2 100755
--- a/ieemoo-ai-searchv2.py
+++ b/ieemoo-ai-searchv2.py
@@ -63,6 +63,8 @@ def search():
     pre_status = False
     try:
         video_name = request.form.get('video_name')
+        if video_name == None:
+            return 'Need video_name'
         logger.info('get video '+video_name)
         ocr_file_path = os.sep.join([cfg.Ocrtxt, video_name.split('.')[0]+'.txt'])
         video_extra_info = request.form.get('video_extra_info')