diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e103cdaa3f87282cfb36da44c9986edfc3fb2c7..c3214ea4cb67b144055dccf9076f74a14f3576c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,7 +26,7 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-653 - When config check fail, Milvus close without message
 - MS-654 - Describe index timeout when building index
 - MS-658 - Fix SQ8 Hybrid can't search
-- #20 - C++ sdk example get grpc error 
+- \#20 - C++ sdk example get grpc error 
 
 ## Improvement
 - MS-552 - Add and change the easylogging library