diff --git a/hack/bootstrap_tfw_dev.sh b/hack/bootstrap_tfw_dev.sh
index f3867df..ea84008 100755
--- a/hack/bootstrap_tfw_dev.sh
+++ b/hack/bootstrap_tfw_dev.sh
@@ -8,6 +8,7 @@ FRONTEND=frontend-${TFW_POSTFIX}
 LOGFILE=/tmp/bootstrap_tfw.log
 trap 'echo "Something went wrong. Read the log az $LOGFILE"' ERR
 
+: > $LOGFILE
 echo -n "Cloning TFW repositories... "
 echo -n "baseimage... " && git clone git@github.com:avatao-content/${BASEIMAGE}.git >> $LOGFILE 2>&1
 echo -n "frontend... " && git clone git@github.com:avatao-content/${FRONTEND}.git >> $LOGFILE 2>&1