diff --git a/index.md b/index.md
index 52bca467..48a5fbfc 100644
--- a/index.md
+++ b/index.md
@@ -54,4 +54,4 @@ Chair: xxx
 
 # User / Group Management
 Current user (uid) and group (gid) ranges can be found here: 
-[UID and GID Management](pdf/UID_and_GID.pdf)
\ No newline at end of file
+[UID and GID Management](https://git.psi.ch/linux-infra/documentation/blob/master/pdf/UID_and_GID.pdf)
\ No newline at end of file