diff --git a/.travis.yml b/.travis.yml
index 271c74a676..c0f5ba5e8d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,5 +49,5 @@ script:
     - sudo make install
     - echo -en 'travis_fold:end:script.5\\r'
     - echo 'Testing building with the installed version...' && echo -en 'travis_fold:start:script.6\\r'
-    - make -C samples/minimal -f makefile.unx
+    - make -C samples/minimal -f makefile.unx -B
     - echo -en 'travis_fold:end:script.6\\r'