diff --git a/.travis.yml b/.travis.yml
index 00d04cb9..89e77762 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ matrix:
 
 install:
   - go get golang.org/x/lint/golint
+  - go get github.com/docker/go-units
   - export PATH=$GOPATH/bin:$PATH
   - go install ./...