diff --git a/ext/standard/array.c b/ext/standard/array.c
index f1636d8bba2..eec7a87beb3 100644
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -94,7 +94,7 @@ ZEND_DECLARE_MODULE_GLOBALS(array)
 */
 static void php_array_init_globals(zend_array_globals *array_globals)
 {
-	memset(array_globals, 0, sizeof(array_globals));
+	memset(array_globals, 0, sizeof(zend_array_globals));
 }
 /* }}} */