diff --git a/.travis.yml b/.travis.yml
index 4ca4544..403a798 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,32 +18,34 @@ os:
   - linux
   - osx
 
+env:
+  - env: TOOLSET=clang-3.4
+  - env: TOOLSET=clang-3.5
+  - env: TOOLSET=clang-3.6
+  - env: TOOLSET=gcc-4.7
+  - env: TOOLSET=gcc-4.8
+  - env: TOOLSET=gcc-4.9
+  - env: TOOLSET=gcc-5.1
+  - env: TOOLSET=xcode-6.1
+
 matrix:
-  include:
-    - compiler: clang
-      env: TOOLSET=clang-3.4
-      os: linux
-    - compiler: clang
-      env: TOOLSET=clang-3.5
-      os: linux
-    - compiler: clang
-      env: TOOLSET=clang-3.6
-      os: linux
-    - compiler: gcc
-      env: TOOLSET=gcc-4.7
-      os: linux
-    - compiler: gcc
-      env: TOOLSET=gcc-4.8
-      os: linux
-    - compiler: gcc
-      env: TOOLSET=gcc-4.9
-      os: linux
-    - compiler: gcc
-      env: TOOLSET=gcc-5.1
-      os: linux
-    - compiler: clang
-      env: TOOLSET=xcode-6.1
+  exclude:
+    - env: TOOLSET=clang-3.4
       os: osx
+    - env: TOOLSET=clang-3.5
+      os: osx
+    - env: TOOLSET=clang-3.6
+      os: osx
+    - env: TOOLSET=gcc-4.7
+      os: osx
+    - env: TOOLSET=gcc-4.8
+      os: osx
+    - env: TOOLSET=gcc-4.9
+      os: osx
+    - env: TOOLSET=gcc-5.1
+      os: osx
+    - env: TOOLSET=xcode-6.1
+      os: linux
 
 before_install: wget "https://raw.githubusercontent.com/boostorg/regression/develop/ci/src/script.py"
 install: python script.py install