diff --git a/lib/azf.js b/lib/azf.js
index 6b70fad..116f7b8 100644
--- a/lib/azf.js
+++ b/lib/azf.js
@@ -229,6 +229,8 @@ var AZF = (function() {
               decision = json_res.Response.Result[0].Decision[0];
             });
             
+            decision = String(decision);
+
             log.debug('Decision: ', decision);
             if (decision === 'Permit') {
                 success();