diff --git a/.travis.yml b/.travis.yml
index f2860cdb3..3c4d76652 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,7 +28,7 @@ before_install:
 - source ./scripts/local_mason.sh
 - source ./scripts/travis_helper.sh
 - source ./scripts/flags.sh
-- ./scripts/travis_before_install.sh
+- source ./scripts/travis_before_install.sh
 - if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then export LD_LIBRARY_PATH=`mason prefix mesa 10.3.1`/lib; fi
 - if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then glxinfo; fi
 
diff --git a/scripts/travis_before_install.sh b/scripts/travis_before_install.sh
index 1d21c1edf..5aaed855c 100755
--- a/scripts/travis_before_install.sh
+++ b/scripts/travis_before_install.sh
@@ -5,12 +5,12 @@ set -o pipefail
 
 if [[ "${MASON_PLATFORM}" == "android" ]]; then
     MASON_PLATFORM= ./.mason/mason install 7z 9.20
-    7Z_PATH=$(MASON_PLATFORM= ./.mason/mason prefix 7z 9.20)/bin/7za
+    SEVEN_ZIP_PATH="$(MASON_PLATFORM= ./.mason/mason prefix 7z 9.20)/bin/7za"
     mapbox_time "fetching NDK" \
       wget http://dl.google.com/android/ndk/android-ndk-r10c-linux-x86_64.bin
     chmod a+x ./android-ndk-r10c-linux-x86_64.bin
     mapbox_time "unpacking NDK" \
-      7Z_PATH x ./android-ndk-r10c-linux-x86_64.bin > /dev/null;
+      SEVEN_ZIP_PATH x ./android-ndk-r10c-linux-x86_64.bin > /dev/null;
     export ANDROID_NDK_PATH=$(pwd)/android-ndk-r10c;
 fi