diff --git a/src/standard/notify-path.html b/src/standard/notify-path.html
index 8b0a4ff495..5556c35017 100644
--- a/src/standard/notify-path.html
+++ b/src/standard/notify-path.html
@@ -431,11 +431,11 @@
         var array = this.get(path);
         // Normalize fancy native splice handling of crazy start values
         if (start < 0) {
-          start = array.length - Math.floor(Math.abs(start));
+          start = array.length - Math.floor(-start);
         } else {
           start = Math.floor(start);
         }
-        if (!start || !isFinite(start)) {
+        if (!start) {
           start = 0;
         }
         var args = Array.prototype.slice.call(arguments, 1);