diff --git a/.travis.yml b/.travis.yml
index b7cd1c84d..7792c308f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,9 +29,9 @@ install:
 script:
   - export GOOS=$TRAVIS_GOOS
   - export CGO_ENABLED=$TRAVIS_CGO_ENABLED
+  - GIT_CHECK_EXCLUDE="./vendor" TRAVIS_COMMIT_RANGE="${TRAVIS_COMMIT_RANGE/.../..}" make dco
   - make fmt
   - make binaries
-  - TRAVIS_COMMIT_RANGE="${TRAVIS_COMMIT_RANGE/.../..}" make dco
   - if [ "$GOOS" != "windows" ]; then make coverage ; fi
   - if [ "$GOOS" != "windows" ]; then sudo PATH=$PATH GOPATH=$GOPATH make root-coverage ; fi