diff --git a/ext/ftp/ftp.stub.php b/ext/ftp/ftp.stub.php
index 0c6b1c5b697..6693641e2b4 100644
--- a/ext/ftp/ftp.stub.php
+++ b/ext/ftp/ftp.stub.php
@@ -27,7 +27,7 @@ namespace {
     function ftp_cdup(FTP\Connection $ftp): bool {}
     function ftp_chdir(FTP\Connection $ftp, string $directory): bool {}
     function ftp_exec(FTP\Connection $ftp, string $command): bool {}
-    function ftp_raw(FTP\Connection $ftp, string $command): array {}
+    function ftp_raw(FTP\Connection $ftp, string $command): ?array {}
     function ftp_mkdir(FTP\Connection $ftp, string $directory): string|false {}
     function ftp_rmdir(FTP\Connection $ftp, string $directory): bool {}
     function ftp_chmod(FTP\Connection $ftp, int $permissions, string $filename): int|false {}
diff --git a/ext/ftp/ftp_arginfo.h b/ext/ftp/ftp_arginfo.h
index 68ee18b3812..92c580ca28b 100644
--- a/ext/ftp/ftp_arginfo.h
+++ b/ext/ftp/ftp_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: bfc9846eb1f74990ec9b406728efff66fe49295f */
+ * Stub hash: 6de0997e9f07a8e1079764ab1841d3ac4651cc53 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_ftp_connect, 0, 1, FTP\\Connection, MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
@@ -39,7 +39,7 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_ftp_exec, 0, 2, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, command, IS_STRING, 0)
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_ftp_raw, 0, 2, IS_ARRAY, 0)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_ftp_raw, 0, 2, IS_ARRAY, 1)
 	ZEND_ARG_OBJ_INFO(0, ftp, FTP\\Connection, 0)
 	ZEND_ARG_TYPE_INFO(0, command, IS_STRING, 0)
 ZEND_END_ARG_INFO()