diff --git a/config/pkg/ext/builtin-extensions.yml b/config/pkg/ext/builtin-extensions.yml
index 6d239633..bdb97507 100644
--- a/config/pkg/ext/builtin-extensions.yml
+++ b/config/pkg/ext/builtin-extensions.yml
@@ -214,6 +214,8 @@ ext-phar:
   type: php-extension
   depends:
     - zlib
+ext-posix:
+  type: php-extension
 ext-readline:
   type: php-extension
   depends: