diff --git a/src/test/dns-test.js b/src/test/dns-test.js
index 90d2b3631..13af89f8d 100644
--- a/src/test/dns-test.js
+++ b/src/test/dns-test.js
@@ -397,11 +397,17 @@ describe('dns provider', function () {
 
             // override route53 in AWS
             // Comment this out and replace the config with real tokens to test against AWS proper
+            AWS._originalRoute53 = AWS.Route53;
             AWS.Route53 = Route53Mock;
 
             settings.setDnsConfig(data, config.fqdn(), done);
         });
 
+        after(function () {
+            AWS.Route53 = AWS._originalRoute53;
+            delete AWS._originalRoute53;
+        });
+
         it('upsert non-existing record succeeds', function (done) {
             awsAnswerQueue.push([null, AWS_HOSTED_ZONES]);
             awsAnswerQueue.push([null, {