diff --git a/dist/index.js b/dist/index.js
index dbe3b8c52..9da2bd1d8 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -263,7 +263,7 @@ async function addExtensionDarwin(extension_csv, version) {
             case /(?<!5\.[3-5])(amqp|apcu|expect|gnupg|grpc|igbinary|imagick|imap|mailparse|mcrypt|memcache|memcached|mongodb|msgpack|protobuf|psr|raphf|rdkafka|redis|ssh2|swoole|xdebug|xdebug2|yaml|zmq)/.test(version_extension):
             case /(5\.6|7\.[0-4])propro/.test(version_extension):
             case /(?<!5\.[3-6]|7\.0)pcov/.test(version_extension):
-            case /(?<!5\.[3-6])(vips|xlswriter)/.test(version_extension):
+            case /(?<!5\.[3-6])(ast|vips|xlswriter)/.test(version_extension):
                 add_script += await utils.joins('\nadd_brew_extension', ext_name, ext_prefix);
                 return;
             case /^sqlite$/.test(extension):
diff --git a/src/configs/brew_extensions b/src/configs/brew_extensions
index a60238b26..02a7b4163 100644
--- a/src/configs/brew_extensions
+++ b/src/configs/brew_extensions
@@ -1,5 +1,6 @@
 amqp=amqp
 apcu=apcu
+ast=ast
 couchbase=couchbase
 event=event
 expect=expect
diff --git a/src/extensions.ts b/src/extensions.ts
index 63b5814c5..9b476a9ea 100644
--- a/src/extensions.ts
+++ b/src/extensions.ts
@@ -85,7 +85,7 @@ export async function addExtensionDarwin(
       ):
       case /(5\.6|7\.[0-4])propro/.test(version_extension):
       case /(?<!5\.[3-6]|7\.0)pcov/.test(version_extension):
-      case /(?<!5\.[3-6])(vips|xlswriter)/.test(version_extension):
+      case /(?<!5\.[3-6])(ast|vips|xlswriter)/.test(version_extension):
         add_script += await utils.joins(
           '\nadd_brew_extension',
           ext_name,