diff --git a/core/modules/utils/dom/modal.js b/core/modules/utils/dom/modal.js
index e98091762..9a0e6dfc2 100644
--- a/core/modules/utils/dom/modal.js
+++ b/core/modules/utils/dom/modal.js
@@ -30,7 +30,7 @@ Modal.prototype.display = function(title,options) {
 		modalBackdrop = document.createElement("div"),
 		modalWrapper = document.createElement("div"),
 		modalHeader = document.createElement("div"),
-		headerTitle = document.createElement("h1"),
+		headerTitle = document.createElement("h3"),
 		modalBody = document.createElement("div"),
 		modalLink = document.createElement("a"),
 		modalFooter = document.createElement("div"),