diff --git a/centos-bareon/install.d/60-bareon-install b/centos-bareon/install.d/60-bareon-install
index f658c5e..e6fe83f 100755
--- a/centos-bareon/install.d/60-bareon-install
+++ b/centos-bareon/install.d/60-bareon-install
@@ -11,7 +11,7 @@ RELEASE_FILE=/etc/bareon-release
 SCRIPTDIR=$(dirname $0)
 install-packages python-setuptools python-pip python-dev
 
-if [ -n ${BAREON_SRC-""} ] ; then
+if [ -d /tmp/bareon/.git ] ; then
     cd /tmp/bareon
     pip install --upgrade setuptools
     pip install -r requirements.txt && python setup.py install
diff --git a/centos-bareon/root.d/60-bareon-src b/centos-bareon/root.d/60-bareon-src
index 77f6232..c5e338f 100755
--- a/centos-bareon/root.d/60-bareon-src
+++ b/centos-bareon/root.d/60-bareon-src
@@ -6,7 +6,7 @@ fi
 set -eu
 set -o pipefail
 
-if [ -n ${BAREON_SRC-""} ] ; then
+if [ -n "$BAREON_SRC" ] ; then
     git clone -b $BAREON_BRANCH $BAREON_SRC $TARGET_ROOT/tmp/bareon
 
     cd $TARGET_ROOT/tmp/bareon