diff --git a/.travis.yml b/.travis.yml
index 0be522c..7368129 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,17 +1,28 @@
 language: cpp
 
-os:
-  - linux
-  - osx
-
-compiler:
-  - gcc
-  - clang
-
-env:
-  - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=ON
-  - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=ON   TRAVIS_STRICT_C90=ON   TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
-  - TRAVIS_BUILD_TYPE=Release  TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+matrix:
+  include:
+    # Linux GCC debug static coveralls
+    - compiler: gcc
+      env: TRAVIS_BUILD_TYPE=Debug   TRAVIS_SHARED_LIBS=OFF TRAVIS_STRICT_C90=OFF TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=ON
+    # Linux GCC debug dll c90
+    - compiler: gcc
+      env: TRAVIS_BUILD_TYPE=Debug   TRAVIS_SHARED_LIBS=ON  TRAVIS_STRICT_C90=ON  TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+    # Linux GCC release static
+    - compiler: gcc
+      env: TRAVIS_BUILD_TYPE=Release TRAVIS_SHARED_LIBS=OFF TRAVIS_STRICT_C90=OFF TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+    # OSX Clang debug static
+    - os: osx
+      compiler: clang
+      env: TRAVIS_BUILD_TYPE=Debug   TRAVIS_SHARED_LIBS=OFF TRAVIS_STRICT_C90=OFF TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+    # OSX Clang debug dll c90
+    - os: osx
+      compiler: clang
+      env: TRAVIS_BUILD_TYPE=Debug   TRAVIS_SHARED_LIBS=ON  TRAVIS_STRICT_C90=ON  TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+    # OSX Clang release static
+    - os: osx
+      compiler: clang
+      env: TRAVIS_BUILD_TYPE=Release TRAVIS_SHARED_LIBS=OFF TRAVIS_STRICT_C90=OFF TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
 
 script:
   - chmod +x travis-build-script.sh