diff --git a/nixos/modules/virtualisation/google-compute-image.nix b/nixos/modules/virtualisation/google-compute-image.nix
index 0e6825c3f5da..556454c6b5f8 100644
--- a/nixos/modules/virtualisation/google-compute-image.nix
+++ b/nixos/modules/virtualisation/google-compute-image.nix
@@ -23,7 +23,7 @@ in
 
           postVM =
             ''
-              PATH=$PATH:${stdenv.lib.makeBinPath [ pkgs.gnutar pkgs.gzip ]}
+              PATH=$PATH:${pkgs.stdenv.lib.makeBinPath [ pkgs.gnutar pkgs.gzip ]}
               pushd $out
               mv $diskImageBase disk.raw
               tar -Szcf $diskImageBase.tar.gz disk.raw