diff --git a/.travis.yml b/.travis.yml
index 901a9790a6..51ebf4dd66 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ matrix:
 script:
   - make gen-all-cli cargo-api ARGS="test --no-default-features --features=$FEATURE"
   - make cargo-api ARGS="doc --no-default-features --features=$FEATURE"
-  - "[[ $TRAVIS_RUST_VERSION = nightly ]] && cargo test"
+  - "if [[ $TRAVIS_RUST_VERSION = nightly ]]; then cargo test; fi"
 env:
   global:
     secure: Plj5DqAQX/4+KPM+nOAZ2sCbGIsoSrHo1YggfesQnU7paR734XO/4IayWnsNO/3q6bDi4GIcn56RUZAD3xBJJBNLia2CYIickIIYORRqLWbLdbzQaxBbD670ahtzEuUSFJTRKURPwFteAnsWYgNMNzwXOVNwLS5IUBqWTcS+N0g=