[MINOR] Second fix for install guide
diff --git a/docs/site/install.md b/docs/site/install.md
index dc75e94..0fc1d4d 100644
--- a/docs/site/install.md
+++ b/docs/site/install.md
@@ -24,8 +24,8 @@
 This guide helps in the install and setup of SystemDS from source code.
 
 - [Windows Guide](#windows)
-- [Ubuntu/Linux Guide](#ubuntu%2020.04)
-- [Mac](#mac)
+- [Ubuntu/Linux Guide](#ubuntu-2004)
+- [Mac Guide](#mac)
 
 ## Windows