diff --git a/pkgs/development/tools/extism-cli/default.nix b/pkgs/development/tools/extism-cli/default.nix
index d499083b523a..ac577f16a970 100644
--- a/pkgs/development/tools/extism-cli/default.nix
+++ b/pkgs/development/tools/extism-cli/default.nix
@@ -27,9 +27,9 @@ buildGoModule rec {
   postInstall = ''
     local INSTALL="$out/bin/extism"
     installShellCompletion --cmd extism \
-      --bash <($out/bin/containerlab completion bash) \
-      --fish <($out/bin/containerlab completion fish) \
-      --zsh <($out/bin/containerlab completion zsh)
+      --bash <($out/bin/extism completion bash) \
+      --fish <($out/bin/extism completion fish) \
+      --zsh <($out/bin/extism completion zsh)
   '';
 
   meta = with lib; {