diff --git a/Jenkinsfile b/Jenkinsfile
index 9848c78f..41613bb0 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -193,7 +193,9 @@ def doWindowsBuild() {
     node('windows && nodejs') {
       unstash 'source'
       try {
-        bat 'npm install --build-from-source=realm'
+        sshagent(['realm-ci-ssh']) {
+          bat 'npm install --build-from-source=realm --realm_enable_sync'
+        }
         dir('tests') {
           bat 'npm install'
           bat 'npm run test'
diff --git a/tests/js/index.js b/tests/js/index.js
index 4222474a..3800ec9a 100644
--- a/tests/js/index.js
+++ b/tests/js/index.js
@@ -31,14 +31,10 @@ var TESTS = {
     ResultsTests: require('./results-tests'),
     QueryTests: require('./query-tests'),
     MigrationTests: require('./migration-tests'),
+    EncryptionTests: require('./encryption-tests'),
     // GarbageCollectionTests: require('./garbage-collection'),
 };
 
-// encryption is not supported on windows
-if (!(typeof process === 'object' && process.platform === 'win32')) {
-    TESTS.EncryptionTests = require('./encryption-tests');
-}
-
 // If sync is enabled, run the sync tests
 if (global.enableSyncTests) {
     TESTS.UserTests = require('./user-tests');