diff --git a/.travis.yml b/.travis.yml
index 0595d24383..330ca3c64d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,3 +10,6 @@ before_script:
 script:
   - make -C unix
   - cd tests && MICROPY_CPYTHON3=python3.3 ./run-tests
+
+after_failure:
+  - for exp in *.exp; do testbase=$(basename $exp .exp); echo -e "\nFAILURE: $testbase"; diff $testbase.exp $testbase.out; done