diff --git a/ext/imap/php_imap.stub.php b/ext/imap/php_imap.stub.php
index d8b01988dfbe2..c49760777f836 100644
--- a/ext/imap/php_imap.stub.php
+++ b/ext/imap/php_imap.stub.php
@@ -81,12 +81,12 @@ function imap_expunge($imap): bool {}
 /**
  * @param resource $imap
  */
-function imap_delete($imap, string $message_num, int $flags = 0): bool {}
+function imap_delete($imap, string $message_nums, int $flags = 0): bool {}
 
 /**
  * @param resource $imap
  */
-function imap_undelete($imap, string $message_num, int $flags = 0): bool {}
+function imap_undelete($imap, string $message_nums, int $flags = 0): bool {}
 
 /** @param resource $imap */
 function imap_check($imap): stdClass|false {}
diff --git a/ext/imap/php_imap_arginfo.h b/ext/imap/php_imap_arginfo.h
index 027baa2d32275..96c320911950f 100644
--- a/ext/imap/php_imap_arginfo.h
+++ b/ext/imap/php_imap_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: d6d158112a802d867646b8f85402b8762599180b */
+ * Stub hash: ec8020febecb370ef2e5f19f00cd092ecb198f8c */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_imap_open, 0, 0, 3)
 	ZEND_ARG_TYPE_INFO(0, mailbox, IS_STRING, 0)
@@ -107,7 +107,7 @@ ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_imap_delete, 0, 2, _IS_BOOL, 0)
 	ZEND_ARG_INFO(0, imap)
-	ZEND_ARG_TYPE_INFO(0, message_num, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, message_nums, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, flags, IS_LONG, 0, "0")
 ZEND_END_ARG_INFO()