diff --git a/ext/mysqlnd/php_mysqlnd.c b/ext/mysqlnd/php_mysqlnd.c
index 6f39b3bbd9f..b16b7fc0929 100644
--- a/ext/mysqlnd/php_mysqlnd.c
+++ b/ext/mysqlnd/php_mysqlnd.c
@@ -136,7 +136,7 @@ PHP_MINFO_FUNCTION(mysqlnd)
 /* }}} */
 
 
-ZEND_DECLARE_MODULE_GLOBALS(mysqlnd);
+PHPAPI ZEND_DECLARE_MODULE_GLOBALS(mysqlnd);
 
 
 /* {{{ PHP_GINIT_FUNCTION