diff --git a/.travis.yml b/.travis.yml
index e07bb015..ef70bfd2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -41,7 +41,9 @@ before_script:
    - cmake .. -DCMAKE_BUILD_TYPE=$CONFIG -DCMAKE_PREFIX_PATH=$PWD/../date
 
 script:
-   - [[ -n "$TESTS_CXX_STD" ]] && ARGS="-DSQLPP11_TESTS_CXX_STD=$TESTS_CXX_STD"
+   - if [[ -n "$TESTS_CXX_STD" ]]; then
+         ARGS="-DSQLPP11_TESTS_CXX_STD=$TESTS_CXX_STD"
+     fi
    - cmake --build . --config $CONFIG $ARGS
    - ctest --output-on-failure