diff --git a/tests/activityDetection.test.js b/tests/activityDetection.test.js
index f9f77263..7f38a11a 100644
--- a/tests/activityDetection.test.js
+++ b/tests/activityDetection.test.js
@@ -22,6 +22,9 @@ describe('Tests for Activity Detection', function() {
 
     afterAll(function (done) {
         childProcess.exec('npm run rebuild', function (err, stdout) {
+            if (err){
+                throw(err);
+            }
             jasmine.DEFAULT_TIMEOUT_INTERVAL = originalTimeout;
             done();
         });