diff --git a/lib/adapters/postgres.js b/lib/adapters/postgres.js
index 52701e04..c2f53631 100644
--- a/lib/adapters/postgres.js
+++ b/lib/adapters/postgres.js
@@ -165,7 +165,7 @@ PG.prototype.toDatabase = function (prop, val) {
         }
     }
     if (prop.type.name === 'Number') {
-      if (!val) {
+      if (!val && val!=0) {
           if( prop.autoIncrement ) {
               return 'DEFAULT';
           }