diff --git a/lib/waterline/utils/normalize.js b/lib/waterline/utils/normalize.js
index 475644ce0..751c7210a 100644
--- a/lib/waterline/utils/normalize.js
+++ b/lib/waterline/utils/normalize.js
@@ -49,7 +49,11 @@ module.exports = {
       }
       
       if (context.attributes[pk].type == 'integer') {
-        coercePK = function(pk) {return +pk;};
+        coercePK = function(pk) {
+          var val = +pk;
+          if (isNaN(val) || !isFinite(val)) {val = 0;}
+          return val;
+        };
       } else if (context.attributes[pk].type == 'string') {
         coercePK = function(pk) {return String(pk).toString();};