diff --git a/core/misc/dialog/dialog.ajax.js b/core/misc/dialog/dialog.ajax.js
index 47f6852292968f4bb101bbe4b6a6110557bc991f..05f603e7b779b20662a2939890f558f4b1b64e44 100644
--- a/core/misc/dialog/dialog.ajax.js
+++ b/core/misc/dialog/dialog.ajax.js
@@ -67,6 +67,7 @@
         // "display: none", we set its dimensions to zero.
         // See http://mattsnider.com/how-forms-submit-when-pressing-enter/
         var $originalButton = $(this).css({
+          display: 'block',
           width: 0,
           height: 0,
           padding: 0,