diff --git a/.install-cmake.sh b/.install-cmake.sh
new file mode 100755
index 0000000000..f4be8eb693
--- /dev/null
+++ b/.install-cmake.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+set -ex
+wget http://www.cmake.org/files/v3.2/cmake-3.2.2.tar.gz
+tar -xzvf cmake-3.2.2.tar.gz
+cd cmake-3.2.2 && ./configure && make && sudo make install
+
diff --git a/.travis.yml b/.travis.yml
index 92a2743519..ded66a95ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,9 +28,7 @@ before_script:
     - sudo apt-get install -y libglu1-mesa-dev
     - sudo apt-get install -y mesa-common-dev
     - sudo apt-get install -y libglew-dev
-    - wget http://www.cmake.org/files/v3.2/cmake-3.2.2.tar.gz
-    - tar -xzvf cmake-3.2.2.tar.gz
-    - cd cmake-3.2.2 && ./configure && make && sudo make install
+    - ./.install-cmake.sh
 
 script:
     - cmake -G 'Unix Makefiles' . && cmake .