diff --git a/index.yml b/index.yml
index 7d36835..3828f31 100644
--- a/index.yml
+++ b/index.yml
@@ -65,6 +65,8 @@
       sidebar:
         - lable: index
           url: .
+        - lable: formuleblad
+          url: formuleblad.html
 
     - lable: REG10
       url: REG10-2