diff --git a/channel/wechat/wechat_mp_channel.py b/channel/wechat/wechat_mp_channel.py
index 4092211..6a05223 100644
--- a/channel/wechat/wechat_mp_channel.py
+++ b/channel/wechat/wechat_mp_channel.py
@@ -19,7 +19,7 @@ def hello_world(msg):
         sensitive_words = [line.strip() for line in f.readlines()]
         found = False
         for word in sensitive_words:
-            if word in msg.content:
+            if word != '' and word in msg.content:
                 found = True
                 break
         if found:
diff --git a/sensitive_words.txt b/sensitive_words.txt
index 8b13789..e69de29 100644
--- a/sensitive_words.txt
+++ b/sensitive_words.txt
@@ -1 +0,0 @@
-