diff --git a/modules/core/src/main/resources/views/layouts/default.html b/modules/core/src/main/resources/views/layouts/default.html
index e5f5972c..014921e9 100644
--- a/modules/core/src/main/resources/views/layouts/default.html
+++ b/modules/core/src/main/resources/views/layouts/default.html
@@ -12,7 +12,7 @@ var defaultSkinName = @Global.getConfig('sys.index.skinName', 'skin-blue-light3'
var skinName = cookie('skinName', false, defaultSkinName);
print('<'+'!DOC'+'TYPE html'+'><'+'html class="'+skinName+'"><'+'head'+'>');
include('/include/head.html', {title: text(title!)}){}
-include('/themes/'+themeName+'/include/header.html', {libs: libs!, skinName: skinName}){} %>
+include('/themes/'+themeName+'/include/header.html', {libs: libs!, skinName: skinName!}){} %>
<% if (!@ListUtils.inString('layout', libs!)){ %>
${layoutContent}
diff --git a/modules/core/src/main/resources/views/themes/default/include/header.html b/modules/core/src/main/resources/views/themes/default/include/header.html
index 6d631e17..efa7de52 100644
--- a/modules/core/src/main/resources/views/themes/default/include/header.html
+++ b/modules/core/src/main/resources/views/themes/default/include/header.html
@@ -1,3 +1,3 @@
<% include('/include/csslibs.html', {libs: libs!}){} %>
-
+
\ No newline at end of file