diff --git a/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix b/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
index b18f422dbfaf..48d05b7a0008 100644
--- a/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
+++ b/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
@@ -71,7 +71,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
     composer global config --quiet minimum-stability dev
     composer global config --quiet prefer-stable true
-    composer global config --quiet autoloader-suffix "nixPredictableAutoloaderSuffix"
     composer global config --quiet apcu-autoloader false
     composer global config --quiet allow-plugins.nix-community/composer-local-repo-plugin true
     composer global config --quiet repo.packagist false