diff --git a/docs/4.0/material-design/extensions.md b/docs/4.0/material-design/extensions.md
index ed17421f..886429b3 100644
--- a/docs/4.0/material-design/extensions.md
+++ b/docs/4.0/material-design/extensions.md
@@ -6,4 +6,4 @@ group: material-design
 
 Material Design for Bootstrap provides seamlessly integration with some extensions.
 
-- [SnackbarJS]({{ site.baseurl }}/material-design/snackbars)
+- [SnackbarJS]({{ site.baseurl }}/docs/4.0/material-design/snackbars)