diff --git a/ext/pdo/pdo_stmt.stub.php b/ext/pdo/pdo_stmt.stub.php
index 06d6a557e73..ab3ab6a42fe 100644
--- a/ext/pdo/pdo_stmt.stub.php
+++ b/ext/pdo/pdo_stmt.stub.php
@@ -40,7 +40,7 @@ class PDOStatement implements IteratorAggregate
     /** @return mixed */
     public function fetchColumn(int $column = 0) {}
 
-    /** @return mixed */
+    /** @return object|false */
     public function fetchObject(?string $class = "stdClass", ?array $ctorArgs = null) {}
 
     /** @return mixed */
diff --git a/ext/pdo/pdo_stmt_arginfo.h b/ext/pdo/pdo_stmt_arginfo.h
index 9e7eea4c3b0..25858477ebe 100644
--- a/ext/pdo/pdo_stmt_arginfo.h
+++ b/ext/pdo/pdo_stmt_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 574055f1dbb6a1bee10e4476642a759e53ca2802 */
+ * Stub hash: 9d890849a08b43cb35e2cd8468aeaabfc0a7f218 */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_class_PDOStatement_bindColumn, 0, 0, 2)
 	ZEND_ARG_TYPE_MASK(0, column, MAY_BE_STRING|MAY_BE_LONG, NULL)