diff --git a/pkgs/by-name/ph/phpactor/package.nix b/pkgs/by-name/ph/phpactor/package.nix
index 56574c10ea1f..eb9532d3d20e 100644
--- a/pkgs/by-name/ph/phpactor/package.nix
+++ b/pkgs/by-name/ph/phpactor/package.nix
@@ -19,13 +19,9 @@ php.buildComposerProject (finalAttrs: {
 
   nativeBuildInputs = [ installShellFiles ];
 
-  postPatch = ''
-    patchShebangs bin/phpactor
-  '';
-
   postInstall = ''
     installShellCompletion --cmd phpactor \
-      --bash <($out/bin/phpactor completion bash)
+      --bash <(php $out/bin/phpactor completion bash)
   '';
 
   meta = {