diff --git a/.travis.yml b/.travis.yml
index 091decf..107b57e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,7 @@ before_install:
   - buildDefault() { exitcode=0; printf "\n\e[33;1mBuilding default configuration\e[0m\n"; buildMulti; if [ $? -ne 0 ]; then exitcode=1; fi; return $exitcode; }
   - buildSerialOnly() { exitcode=0; printf "\n\e[33;1mBuilding serial mode only\e[0m\n"; opt_disable ENABLE_PPM; opt_enable ENABLE_SERIAL; buildMulti; if [ $? -ne 0 ]; then exitcode=1; fi; return $exitcode; }
   - buildPPMOnly() { exitcode=0; printf "\n\e[33;1mBuilding PPM mode only\e[0m\n"; opt_enable ENABLE_PPM; opt_disable ENABLE_SERIAL; buildMulti; if [ $? -ne 0 ]; then exitcode=1; fi; return $exitcode; }
+  - export -f buildMulti
 
   # Function to build the release files - dependent on board type
   - if [[ "$BOARD" == "multi4in1:avr:multixmega32d4" ]]; then
@@ -141,6 +142,9 @@ install:
     fi
 
 before_script:
+  # Export all the variables
+  - set -a
+
   # Change current working directory to the build dir
   - cd ${TRAVIS_BUILD_DIR}