diff --git a/src/Umbraco.Web/Editors/BackOfficeController.cs b/src/Umbraco.Web/Editors/BackOfficeController.cs
index 13afce3f26..21e3145cb8 100644
--- a/src/Umbraco.Web/Editors/BackOfficeController.cs
+++ b/src/Umbraco.Web/Editors/BackOfficeController.cs
@@ -65,7 +65,7 @@ namespace Umbraco.Web.Editors
         [HttpGet]
         public JsonNetResult LocalizedText(string culture = null)
         {
-            var cultureInfo = culture == null 
+            var cultureInfo = string.IsNullOrWhiteSpace(culture)
                 //if the user is logged in, get their culture, otherwise default to 'en'
                 ? User.Identity.IsAuthenticated && User.Identity is UmbracoBackOfficeIdentity
                     ? Security.CurrentUser.GetUserCulture(Services.TextService)