diff --git a/documentation/admin.md b/documentation/admin.md
index 3c056439..56b8ca1e 100644
--- a/documentation/admin.md
+++ b/documentation/admin.md
@@ -13,7 +13,7 @@ This is Admin documentation for Spectrum 2 transport. If you are user trying to
 
 * [Installing using Docker](installation/docker.html)
 * [Installing from source code](installation/from_source_code.html)
-* [Installing from source code on Debian/Ubuntu](installation/from_source_code_debian_ubuntu.md)
+* [Installing from source code on Debian/Ubuntu](installation/from_source_code_debian_ubuntu.html)
 
 #### Frontends