diff --git a/docs/_data/navigation.yml b/docs/_data/navigation.yml
index 2091ec9..e7fcba1 100644
--- a/docs/_data/navigation.yml
+++ b/docs/_data/navigation.yml
@@ -3,9 +3,9 @@ side:
     children:
       - title: "Home"
         url: "/"
-      - title: "Material-TB1"
+      - title: "Material: TB1"
         url: "/material-TB1"
-      - title: "Material-TB2"
+      - title: "Material: TB2"
         url: "/material-TB2"
       - title: "Virtual Machine (VM)"
         url: "/vm"