diff --git a/.travis.yml b/.travis.yml
index 6bb26863..86702881 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,7 +40,6 @@ matrix:
     - os: osx
       compiler: clang
       osx_image: xcode9.4
-      env: COMPILER="clang-6.0"
     - os: osx
       compiler: clang
       osx_image: xcode9.4
@@ -54,7 +53,6 @@ env:
 
 before_install:
   - if [ "${GCC_VER}" != "" ]; then export CXX="g++-$GCC_VER" CC="gcc-$GCC_VER" GCOV="gcov-$GCC_VER" ; fi
-  - if [ "${COMPILER}" != "" ]; then export CXX=${COMPILER} ; fi
   - pip install --user cpp-coveralls
 
 script: