diff --git a/pack-chrome.sh b/pack-chrome.sh
index 6e0fbb4..f7cd3b7 100755
--- a/pack-chrome.sh
+++ b/pack-chrome.sh
@@ -4,6 +4,13 @@ temp_name=$(head -c 20 /dev/random | xxd -p | tr -dc a-f0-9)
 temp_dir="/tmp/${temp_name}"
 chrome_dir="${temp_dir}/chrome"
 
+if [[ ! -n "${DRONE_TAG}" ]]
+then
+    export DRONE_TAG=$(git describe --abbrev=0 | tr -dc v0-9)
+fi
+
+rm "${dir}/out"
+
 mkdir -p "${temp_dir}/out"
 mkdir -p "${chrome_dir}"