diff --git a/.travis.yml b/.travis.yml
index e9d5e77..ebb4936 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,6 +29,7 @@ env:
         - PLATFORMIO_CI_SRC=examples/Input
         - PLATFORMIO_CI_SRC=examples/RPN_NRPN
         - PLATFORMIO_CI_SRC=examples/SimpleSynth
+        - PLATFORMIO_CI_SRC=examples/AltPinSerial
 
 addons:
     apt: