diff --git a/.travis.yml b/.travis.yml
index c3001b2..97c3444 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -96,8 +96,8 @@
         # Enable verbose output of platformio
         #- platformio settings set force_verbose yes
 
-        #- echo "-------";echo "Compiling example knx-usb";echo "--------";
-        #- platformio ci --lib="." --project-conf=examples/knx-usb/platformio-ci.ini examples/knx-usb/src/main.cpp
+        - echo "-------";echo "Compiling example knx-usb";echo "--------";
+        - platformio ci --lib="." --project-conf=examples/knx-usb/platformio-ci.ini examples/knx-usb/src/main.cpp
 
         - echo "-------";echo "Compiling example knx-demo";echo "--------";
         - platformio ci --lib="." --project-conf=examples/knx-demo/platformio-ci.ini examples/knx-demo/knx-demo.ino