diff --git a/lib/resultset.js b/lib/resultset.js
index d175f3f..0b8c165 100644
--- a/lib/resultset.js
+++ b/lib/resultset.js
@@ -130,8 +130,8 @@ ResultSet.prototype.toObjectIter = function (callback) {
                   var dateVal = self._rs[getter](cmd.label);
                   result[cmd.label] = dateVal ? dateVal.toString() : null;
                 } else {
-                  // If the column is an integer and is null, set result to null and continue
-                  if (type === 'Int' && _.isNull(self._rs.getObjectSync(cmd.label))) {
+                  // If the column is an integer or Double or Boolean and is null, set result to null and continue
+                  if ((type === 'Int' || type === 'Double' || type === 'Boolean') && _.isNull(self._rs.getObjectSync(cmd.label))) {
                     result[cmd.label] = null;
                     return;
                   }