diff --git a/src/Umbraco.Web/HtmlHelperRenderExtensions.cs b/src/Umbraco.Web/HtmlHelperRenderExtensions.cs
index 2a009dfaa2..f434b70656 100644
--- a/src/Umbraco.Web/HtmlHelperRenderExtensions.cs
+++ b/src/Umbraco.Web/HtmlHelperRenderExtensions.cs
@@ -296,7 +296,7 @@ namespace Umbraco.Web
                                                object htmlAttributes,
                                                FormMethod method)
         {
-            return html.BeginUmbracoForm(action, controllerName, additionalRouteVals, htmlAttributes.ToDictionary<object>(), method);
+            return html.BeginUmbracoForm(action, controllerName, additionalRouteVals, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes), method);
         }
 
         /// <summary>
@@ -312,7 +312,7 @@ namespace Umbraco.Web
 											   object additionalRouteVals,
 											   object htmlAttributes)
 		{
-			return html.BeginUmbracoForm(action, controllerName, additionalRouteVals, htmlAttributes.ToDictionary<object>());
+            return html.BeginUmbracoForm(action, controllerName, additionalRouteVals, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
 		}
 
         /// <summary>
@@ -480,7 +480,7 @@ namespace Umbraco.Web
                                                object htmlAttributes,
                                                FormMethod method)
         {
-            return html.BeginUmbracoForm(action, surfaceType, additionalRouteVals, htmlAttributes.ToDictionary<object>(), method);
+            return html.BeginUmbracoForm(action, surfaceType, additionalRouteVals, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes), method);
         }
 
         /// <summary>
@@ -496,7 +496,7 @@ namespace Umbraco.Web
 											   object additionalRouteVals,
 											   object htmlAttributes)
 		{
-			return html.BeginUmbracoForm(action, surfaceType, additionalRouteVals, htmlAttributes.ToDictionary<object>());
+            return html.BeginUmbracoForm(action, surfaceType, additionalRouteVals, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
 		}
 
         /// <summary>
diff --git a/src/umbraco.sln b/src/umbraco.sln
index 0b7902d964..ba7a350194 100644
--- a/src/umbraco.sln
+++ b/src/umbraco.sln
@@ -157,7 +157,4 @@ Global
 		{73529637-28F5-419C-A6BB-D094E39DE614} = {DD32977B-EF54-475B-9A1B-B97A502C6E58}
 		{B555AAE6-0F56-442F-AC9F-EF497DB38DE7} = {DD32977B-EF54-475B-9A1B-B97A502C6E58}
 	EndGlobalSection
-	GlobalSection(Performance) = preSolution
-		HasPerformanceSessions = true
-	EndGlobalSection
 EndGlobal