diff --git a/src/ng/filter/filters.js b/src/ng/filter/filters.js
index f35911d0965d..e563883682db 100644
--- a/src/ng/filter/filters.js
+++ b/src/ng/filter/filters.js
@@ -614,7 +614,7 @@ function dateFilter($locale) {
       date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);
     }
 
-    if (isNumber(date)) {
+    if (isNumber(date) && !isNaN(date)) {
       date = new Date(date);
     }