diff --git a/doc/ELASTIC_CTR.md b/doc/ELASTIC_CTR.md
index da0c7cfcb0c8db069928b6918514d219f315eb22..7c0c0af25c07b10542677c095bc5786d514bd451 100755
--- a/doc/ELASTIC_CTR.md
+++ b/doc/ELASTIC_CTR.md
@@ -1,7 +1,7 @@
 ELASTIC CTR
 ===================
 
-————百度云分布式训练CTR预估任务和Serving流程一键部署
+——百度云分布式训练CTR预估任务和Serving流程一键部署
 
 
 * [1. 总体概览](#head1)