1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/docker/examples.nix b/pkgs/build-support/docker/examples.nix
index 169edb171db..9b9a21a1469 100644
--- a/pkgs/build-support/docker/examples.nix
+++ b/pkgs/build-support/docker/examples.nix
@@ -97,7 +97,7 @@ rec {
   };
   # Same example, but re-fetches every time the fetcher implementation changes.
   # NOTE: Only use this for testing, or you'd be wasting a lot of time, network and space.
-  testNixFromDockerHub = pkgs.invalidateFetcherByDrvHash pullImage {
+  testNixFromDockerHub = pkgs.testers.invalidateFetcherByDrvHash pullImage {
     imageName = "nixos/nix";
     imageDigest = "sha256:85299d86263a3059cf19f419f9d286cc9f06d3c13146a8ebbb21b3437f598357";
     sha256 = "19fw0n3wmddahzr20mhdqv6jkjn1kanh6n2mrr08ai53dr8ph5n7";