diff --git a/.travis.yml b/.travis.yml
index ebe3913..d99acb7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -161,7 +161,7 @@ matrix:
     - os: linux
       dist: trusty
       compiler: clang++-3.5
-      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11
       addons:
         apt:
           packages: