diff --git a/sql/2.6.9更新.sql b/sql/2.6.9更新.sql
index 769004d2..f8f44d95 100644
--- a/sql/2.6.9更新.sql
+++ b/sql/2.6.9更新.sql
@@ -5,4 +5,4 @@ alter table wvp_platform
     add auto_push_channel bool default false
 
 alter table wvp_stream_proxy
-    add stream_key varying(255)
+    add stream_key character varying(255)