diff --git a/app/assets/stylesheets/pages/merge_requests.scss b/app/assets/stylesheets/pages/merge_requests.scss
index 9af8227a52ff4692943c8da576ca4000a73c635c..5922ac95a48aca4f5e32e623d04d040650705c9e 100644
--- a/app/assets/stylesheets/pages/merge_requests.scss
+++ b/app/assets/stylesheets/pages/merge_requests.scss
@@ -179,3 +179,7 @@
 .merge-request-form .select2-container {
   width: 250px !important;
 }
+
+#modal_merge_info .modal-dialog {
+  width: 600px;
+}