diff --git a/scripts/export_src.sh b/scripts/export_src.sh
index f584bb5..57323dd 100755
--- a/scripts/export_src.sh
+++ b/scripts/export_src.sh
@@ -61,6 +61,10 @@ if [ "$ERR_PATHS" ]; then
     exit 1
 fi
 
+if [ -z "${EXPORT_DATE}" ]; then
+    EXPORT_DATE="${LAST_COMMIT_DATE}"
+fi
+
 find . -name ".git*" -print0 | xargs -0 rm -rf
 zip -r -q "${SRC_FOLDER_NAME}-${EXPORT_DATE}".zip .