diff --git a/.travis.yml b/.travis.yml
index 32dd43e81..7ea302060 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,7 @@ matrix:
           env: LIBRARY_COMBO=gnu-gnu-gnu
 sudo: required
 before_install:
+    - ls /usr/local/bin
     - sudo apt-get -qq update
     - sudo apt-get install -y cmake pkg-config libgnutls28-dev libgmp-dev libffi-dev libicu-dev libxml2-dev libxslt1-dev libssl-dev libavahi-client-dev zlib1g-dev libblocksruntime-dev
     - >
@@ -37,8 +38,9 @@ before_install:
           curl -s -o - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -;
           sudo apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main" && sudo apt-get update -qq;
           sudo apt-get install -y clang-9 libkqueue-dev libpthread-workqueue-dev;
-          export CC=clang-9;
-          export CXX=clang++-9;
+          sudo update-alternatives   --install /usr/bin/clang   clang   /usr/bin/clang-9   10 \
+                                     --slave   /usr/bin/clang++ clang++ /usr/bin/clang++-9;
+          export PATH=$(echo "$PATH" | sed -e 's/:\/usr\/local\/clang-7.0.0\/bin//');
         fi;
 install: ./travis-deps.sh
 before_script: >