diff --git a/.travis.yml b/.travis.yml
index afd87022..23434961 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -75,5 +75,4 @@ install:
 
 script:
     - platformio ci --lib="." --board=uno --board=due --board=teensy30 --board=teensy31 --board=teensy35 --board=teensy36 --board=teensylc
-    - export PLATFORMIO_BUILD_FLAGS="$PLATFORMIO_BUILD_FLAGS -Wno-unused-function" # Workaround https://github.com/esp8266/Arduino/pull/2881
-    - platformio ci --lib="." --board=esp12e --board=nodemcu
+    - platformio ci --verbose --lib="." --board=esp12e --board=nodemcu --project-option="build_flags=-Wno-unused-function" # Workaround https://github.com/esp8266/Arduino/pull/2881