diff --git a/.travis.yml b/.travis.yml
index 5ba15080c..3d0264f94 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ before_script:
 script:
   - test -z $(gofmt -s -l $GOPATH/src/github.com/hajimehoshi/ebiten)
   - go build -tags example -v github.com/hajimehoshi/ebiten/examples/...
-  - go test -cpu=1 -v github.com/hajimehoshi/ebiten/...
+  - go test -v github.com/hajimehoshi/ebiten/...
   - gopherjs build --tags example -v github.com/hajimehoshi/ebiten/examples/blocks
 
 # Looks like testing GL on node is hard.