diff --git a/nixos/modules/virtualisation/podman/default.nix b/nixos/modules/virtualisation/podman/default.nix
index 5f01142b4a13..df5d3e27acfb 100644
--- a/nixos/modules/virtualisation/podman/default.nix
+++ b/nixos/modules/virtualisation/podman/default.nix
@@ -24,23 +24,25 @@ let
         inherit (cfg.package) meta;
         preferLocalBuild = true;
       }
-      ''
-        mkdir -p $out/bin
-        ln -s ${cfg.package}/bin/podman $out/bin/docker
+      (
+        ''
+          mkdir -p $out/bin
+          ln -s ${cfg.package}/bin/podman $out/bin/docker
 
-        mkdir -p $man/share/man/man1
-        for f in ${cfg.package.man}/share/man/man1/*; do
-          basename=$(basename $f | sed s/podman/docker/g)
-          ln -s $f $man/share/man/man1/$basename
-        done
-      ''
-    + lib.optionalString (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
-      export HOME=$(mktemp -d) # work around `docker <cmd>`
-      installShellCompletion --cmd docker \
-        --bash <($out/bin/docker completion bash) \
-        --zsh <($out/bin/docker completion zsh) \
-        --fish <($out/bin/docker completion fish)
-    '';
+          mkdir -p $man/share/man/man1
+          for f in ${cfg.package.man}/share/man/man1/*; do
+            basename=$(basename $f | sed s/podman/docker/g)
+            ln -s $f $man/share/man/man1/$basename
+          done
+        ''
+        + lib.optionalString (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+          export HOME=$(mktemp -d) # work around `docker <cmd>`
+          installShellCompletion --cmd docker \
+            --bash <($out/bin/docker completion bash) \
+            --zsh <($out/bin/docker completion zsh) \
+            --fish <($out/bin/docker completion fish)
+        ''
+      );
 
 in
 {