diff --git a/nixos/modules/virtualisation/podman/default.nix b/nixos/modules/virtualisation/podman/default.nix
index df5d3e27acfb..21a0e083d871 100644
--- a/nixos/modules/virtualisation/podman/default.nix
+++ b/nixos/modules/virtualisation/podman/default.nix
@@ -35,7 +35,7 @@ let
             ln -s $f $man/share/man/man1/$basename
           done
         ''
-        + lib.optionalString (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+        + lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
           export HOME=$(mktemp -d) # work around `docker <cmd>`
           installShellCompletion --cmd docker \
             --bash <($out/bin/docker completion bash) \