diff --git a/.travis.yml b/.travis.yml
index 84b28a893..127cebc9f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,12 +27,12 @@ matrix:
 ## Install mainline ARM toolchain.  gcc-arm-none-eabi is available
 ## in Ubuntu >= 14.04, but this external PPA is needed for 12.04.
 before_script:
-  - if  [ "$TRAVIS_OS_NAME" = "linux" ]; then 
+  - if  [[ "$TRAVIS_OS_NAME" == "linux" ]]; then 
   - sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu trusty main universe multiverse restricted';
   - sudo apt-get update -qq;
   - sudo apt-get install -y gcc-arm-none-eabi;
   - git fetch --all
-  - elif [ "$TRAVIS_OS_NAME" = "osx" ]; then 
+  - elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then 
   - brew update;
   - brew tap iceman1001/proxmark3;
   - brew install proxmark3;