diff --git a/pkgs/by-name/pr/proxmox-backup-client/package.nix b/pkgs/by-name/pr/proxmox-backup-client/package.nix
index 2ba4618160d0..bf5e4a29ecde 100644
--- a/pkgs/by-name/pr/proxmox-backup-client/package.nix
+++ b/pkgs/by-name/pr/proxmox-backup-client/package.nix
@@ -25,7 +25,7 @@ let
 
   proxmox-backup_src = fetchgit {
     url = "git://git.proxmox.com/git/proxmox-backup.git";
-    rev = "ed8bc69a50301ad420366d8431a7891b4992408d"; # no version tag unfortunately
+    tag = "v${version}";
     name = "proxmox-backup";
     hash = "sha256-0piUftzuK9e8KbOe+bc3SXWa0DlnEgk5iNGWGn4fw7Y=";
   };