diff --git a/.travis.yml b/.travis.yml
index bad86efb7..0573b9722 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,8 +27,8 @@ install:
 
 # Generate a self-signed X.509 certificate for TLS.
 before_script:
- - ("$TEST_SUITE" -eq "integ-test") && openssl req -x509 -newkey rsa:512 -keyout server.key -out server.crt -days 365 -nodes -subj /CN=localhost
- - ("$TEST_SUITE" -eq "integ-test") && ./scripts/install-local-kafka.sh
+ - if [[ "$TEST_SUITE" -eq "integ-test" ]]; then openssl req -x509 -newkey rsa:512 -keyout server.key -out server.crt -days 365 -nodes -subj /CN=localhost; fi
+ - if [[ "$TEST_SUITE" -eq "integ-test" ]]; then ./scripts/install-local-kafka.sh; fi
 
 script:
  - ./scripts/travis-test.sh