diff --git a/src/main/webapp/assets/common/css/gitbucket.css b/src/main/webapp/assets/common/css/gitbucket.css
index 3c9f3ce..6b2ca4b 100644
--- a/src/main/webapp/assets/common/css/gitbucket.css
+++ b/src/main/webapp/assets/common/css/gitbucket.css
@@ -1204,7 +1204,8 @@
 }
 
 table.diff th.line-num{
-  min-width: 20px;
+  /*min-width: 20px;*/
+  width: 20px;
 }
 
 table.diff .add-comment {