diff --git a/pkgs/tools/text/ov/default.nix b/pkgs/tools/text/ov/default.nix
index c7801348c4e37..1556eeabe366c 100644
--- a/pkgs/tools/text/ov/default.nix
+++ b/pkgs/tools/text/ov/default.nix
@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , buildGoModule
 , fetchFromGitHub
 , installShellFiles
@@ -38,12 +39,12 @@ buildGoModule rec {
 
   outputs = [ "out" "doc" ];
 
-  postInstall = ''
+  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
     installShellCompletion --cmd ov \
-      --bash <($out/bin/ov completion bash) \
-      --fish <($out/bin/ov completion fish) \
-      --zsh <($out/bin/ov completion zsh)
-
+      --bash <($out/bin/ov --completion bash) \
+      --fish <($out/bin/ov --completion fish) \
+      --zsh <($out/bin/ov --completion zsh)
+    '' + ''
     mkdir -p $out/share/$name
     cp $src/ov-less.yaml $out/share/$name/less-config.yaml
     makeWrapper $out/bin/ov $out/bin/ov-less --add-flags "--config $out/share/$name/less-config.yaml"