diff --git a/tutorial/tutorial_sphinx_theme_1/layout.html b/tutorial/tutorial_sphinx_theme_1/layout.html
index 2b62195..f1fb821 100644
--- a/tutorial/tutorial_sphinx_theme_1/layout.html
+++ b/tutorial/tutorial_sphinx_theme_1/layout.html
@@ -348,7 +348,7 @@
 			{
 				if(href.match(root_pattern)==null)
 				{
-					href=href+"/"+platform_api);
+					href=href+"/"+platform_api;
 				}
 				else
 				{