diff --git a/pkgs/build-support/docker/examples.nix b/pkgs/build-support/docker/examples.nix
index b9a334971744..691d4bb74dbf 100644
--- a/pkgs/build-support/docker/examples.nix
+++ b/pkgs/build-support/docker/examples.nix
@@ -102,7 +102,7 @@ rec {
     ];
   };
 
-  # 5. nix example to play with the container nix store
+  # 6. nix example to play with the container nix store
   # docker run -it --rm nix nix-store -qR $(nix-build '<nixpkgs>' -A nix)
   nix = buildImageWithNixDb {
     name = "nix";