diff --git a/ext/mysql/php_mysql.c b/ext/mysql/php_mysql.c
index 029697c51c9..172249665db 100644
--- a/ext/mysql/php_mysql.c
+++ b/ext/mysql/php_mysql.c
@@ -738,6 +738,7 @@ static void php_mysql_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
 #endif
 
 			mysql = (php_mysql_conn *) le->ptr;
+			mysql->active_result_id = 0;
 		}
 		ZEND_REGISTER_RESOURCE(return_value, mysql, le_plink);
 	} else { /* non persistent */