diff --git a/customize.dist/src/less2/include/sidebar-layout.less b/customize.dist/src/less2/include/sidebar-layout.less
index 5525f0fb8..6e4017acc 100644
--- a/customize.dist/src/less2/include/sidebar-layout.less
+++ b/customize.dist/src/less2/include/sidebar-layout.less
@@ -97,6 +97,7 @@
                         margin-left: 10px;
                     }
                 }
+                max-width: 650px;
                 margin-bottom: 20px;
                 .buttons_main();
             }