diff --git a/.travis.yml b/.travis.yml
index 9144a62..a9c1152 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,6 +22,8 @@ before_install:
       sudo add-apt-repository -y ppa:boost-latest/ppa;
       sudo apt-get update;
       sudo apt-get install libboost1.55-all-dev;
+      wget https://github.com/Itseez/opencv/archive/3.1.0.zip;
+      sudo unzip 3.1.0.zip;
     fi
 
   # g++4.8.1
@@ -46,10 +48,10 @@ before_install:
 
   - if [ ${TRAVIS_OS_NAME} = osx ]; then
       brew update;
+      wget https://github.com/Itseez/opencv/archive/3.1.0.zip;
+      sudo unzip 3.1.0.zip;
     fi
 
-    - wget https://github.com/Itseez/opencv/archive/3.1.0.zip 
-    - sudo unzip 3.1.0.zip
 before_script:
   - cd opencv-3.1.0
   - sudo mkdir build