diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index 63845e6b9ba..41079b6eeb5 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -206,7 +206,7 @@
     padding-top: 0;
 
     .block {
-      width: $sidebar_collapsed_width - 1px;
+      width: $sidebar_collapsed_width - 2px;
       margin-left: -19px;
       padding: 15px 0 0;
       border-bottom: none;