diff --git a/docusaurus.config.js b/docusaurus.config.js
index 8d6b15b..b1b9c3f 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -116,35 +116,35 @@ const config = {
             type: "doc",
             docId: "ib002-intro",
             position: "left",
-            label: "IB002",
+            label: "IB002: Algorithms",
           },
           // {
           //   type: "doc",
           //   docId: "ib015-intro",
           //   docsPluginId: "ib015",
           //   position: "left",
-          //   label: "IB015",
+          //   label: "IB015: Non-imperative programming",
           // },
           // {
           //   type: "doc",
           //   docId: "ib110-intro",
           //   docsPluginId: "ib110",
           //   position: "left",
-          //   label: "IB110",
+          //   label: "IB110: Introduction to informatics",
           // },
           {
             type: "doc",
             docId: "pb071-intro",
             docsPluginId: "pb071",
             position: "left",
-            label: "PB071",
+            label: "PB071: C",
           },
           {
             type: "doc",
             docId: "pb161-intro",
             docsPluginId: "pb161",
             position: "left",
-            label: "PB161",
+            label: "PB161: C++",
           },
           {
             href: "https://gitlab.fi.muni.cz/xfocko/fi",