diff --git a/setup/pi/configure.sh b/setup/pi/configure.sh
index 4f30e21..36ef23f 100644
--- a/setup/pi/configure.sh
+++ b/setup/pi/configure.sh
@@ -2,8 +2,8 @@
 
 REPO=${REPO:-cimryan}
 BRANCH=${BRANCH:-master}
-INSTALL_DIR=${INSTALL_DIR:-/root/bin}
 
+export INSTALL_DIR=${INSTALL_DIR:-/root/bin}
 
 function check_variable () {
     local var_name="$1"