diff --git a/src/Umbraco.Web.UI.Client/src/common/services/contenteditinghelper.service.js b/src/Umbraco.Web.UI.Client/src/common/services/contenteditinghelper.service.js
index 8cbca33436..8f2aa1d22b 100644
--- a/src/Umbraco.Web.UI.Client/src/common/services/contenteditinghelper.service.js
+++ b/src/Umbraco.Web.UI.Client/src/common/services/contenteditinghelper.service.js
@@ -330,7 +330,7 @@ function contentEditingHelper(fileManager, $q, $location, $routeParams, editorSt
          * Returns a id for the variant that is unique between all variants on the content
          */
         buildCompositeVariantId: function (variant) {
-            return (variant.language ? variant.language.culture : "invariant") + "." + (variant.segment ? variant.segment : "");
+            return (variant.language ? variant.language.culture : "invariant") + "_" + (variant.segment ? variant.segment : "");
         },