diff --git a/.travis.yml b/.travis.yml
index 8738266..d08d69e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -42,5 +42,5 @@ jobs:
     before_script:
       - docker-compose -f docker/docker-compose.yml up -d
     script:
-      - ./simulator/device_simulator.py -t mqtt -s 'mqtt1234' &
-      - curl http://localhost/telemetry/mqtt1234/last/
+      - sleep 10 && ./simulator/device_simulator.py -t mqtt -s 'mqtt1234' &
+      - curl -sf http://localhost/telemetry/mqtt1234/last/