diff --git a/src/core.js b/src/core.js
index 4674710f4..b2dc207dd 100644
--- a/src/core.js
+++ b/src/core.js
@@ -1214,7 +1214,7 @@ $.extend( $.validator, {
 
 			// Exception: the jquery validate 'range' method
 			// does not test for the html5 'range' type
-			rules[ method ] = true;
+			rules[ type === "date" ? "dateISO" : method ] = true;
 		}
 	},