diff --git a/.travis.yml b/.travis.yml
index e4f4ee4bca..a95ec75b58 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -130,9 +130,9 @@ before_install:
     wget "https://raw.githubusercontent.com/boostorg/release-tools/develop/${SCRIPT}.py" -P ..
     rvm install 2.3.3
 
-install: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" install
-before_script: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" before_script
-script: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" script
-after_success: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_success
-after_failure: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_failure
-after_script: CXX= python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_script
+install: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" install
+before_script: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" before_script
+script: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" script
+after_success: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_success
+after_failure: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_failure
+after_script: python "${TRAVIS_BUILD_DIR}/../${SCRIPT}.py" after_script