diff --git a/resources/themes/bootstrap/index.php b/resources/themes/bootstrap/index.php
index dc6d25f..5b6f782 100644
--- a/resources/themes/bootstrap/index.php
+++ b/resources/themes/bootstrap/index.php
@@ -141,7 +141,10 @@ function AddFavorite(title, url) {
 	{
 		container_top.style.marginBottom = '0';
 		container_page.style.marginBottom = '0';
-		container_readme.style.marginTop = '20px';
+		if(document.getElementById("container_readme"))
+		{
+			container_readme.style.marginTop = '20px';
+		}
 	}
 }); 
 </script>