diff --git a/.travis.yml b/.travis.yml
index e2f4f702..dd030188 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ before_script:
   - composer install --no-interaction --prefer-source --dev
   - ~/.nvm/nvm.sh install v0.6.14
   - ~/.nvm/nvm.sh run v0.6.14
-  - '[ "$TRAVIS_PHP_VERSION" != "7.0" ] || echo "xdebug.overload_var_dump = 1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini'
+  - '[ "$TRAVIS_PHP_VERSION" != "7.0" || "$TRAVIS_PHP_VERSION" != "7.1" ] || echo "xdebug.overload_var_dump = 1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini'
 
 script: make test