diff --git a/.travis.yml b/.travis.yml
index 4253af7..d9a8845 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -55,7 +55,7 @@ before_script:
   - cd opencv
   - mkdir build
   - cd build
-  - cmake -D CMAKE_BUILD_TYPE=RELEASE ..
+  - cmake -D CMAKE_BUILD_TYPE=RELEASE -D WITH_V4L=ON ..
   - make -j4
   - sudo make -j2 install
   - cd ../..