diff --git a/.travis.yml b/.travis.yml
index 3fe7e13..0e18909 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ matrix:
   include:
     - os: linux
       compiler: g++
-      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11 VARIANT=debug,release
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11
 
     - os: linux
       compiler: g++-4.4
@@ -97,7 +97,7 @@ matrix:
 
     - os: linux
       compiler: g++-7
-      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17 VARIANT=release
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
       addons:
         apt:
           packages:
@@ -127,7 +127,7 @@ matrix:
 
     - os: linux
       compiler: clang++
-      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11 VARIANT=debug,release
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
 
     - os: linux
       compiler: /usr/bin/clang++
@@ -216,7 +216,7 @@ matrix:
 
     - os: linux
       compiler: clang++-5.0
-      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z VARIANT=release
+      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
       addons:
         apt:
           packages:
@@ -261,7 +261,7 @@ matrix:
 
     - os: linux
       compiler: clang++-libc++
-      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z VARIANT=release
+      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
       addons:
         apt:
           packages: