diff --git a/.travis.yml b/.travis.yml
index 339ea9847763b3a1cec14f1f5363014b0f6d9de5..29234558a913f0bdb7847d078778d5bd0226929c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,18 +4,14 @@ compiler:
   - gcc
   - clang
 
-os:
-  - linux
-  - osx
-
 before_install:
   # Linux
-  - if [ "TRAVIS_OS_NAME" == "linux" ]; sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu/ trusty main universe"; fi
-  - if [ "TRAVIS_OS_NAME" == "linux" ]; sudo apt-get update -qq; fi
-  - if [ "TRAVIS_OS_NAME" == "linux" ]; sudo apt-get install root-system -y; fi
+  - if [ "TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu/ trusty main universe"; fi
+  - if [ "TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update -qq; fi
+  - if [ "TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install root-system -y; fi
   # OSX 
-  - if [ "TRAVIS_OS_NAME" == "osx" ]; brew install homebrew/science/root; fi
-  - if [ "TRAVIS_OS_NAME" == "osx" ]; brew install homebrew/science/geant4; fi    
+  - if [ "TRAVIS_OS_NAME" == "osx" ]; then brew install homebrew/science/root; fi
+  - if [ "TRAVIS_OS_NAME" == "osx" ]; then brew install homebrew/science/geant4; fi    
   # Dumping stuff for check
   - root-config --cflags
 
@@ -38,4 +34,7 @@ branches:
   only:
     - NPTool.2.dev
 
+os:
+  - linux
+  - osx