diff --git a/rootfs/usr/local/etc/docker/init.d/08-gitea.sh b/rootfs/usr/local/etc/docker/init.d/08-gitea.sh
index 0bf9962..7a0b116 100755
--- a/rootfs/usr/local/etc/docker/init.d/08-gitea.sh
+++ b/rootfs/usr/local/etc/docker/init.d/08-gitea.sh
@@ -228,7 +228,7 @@ GITEA_SQL_DB_HOST="${GITEA_SQL_DB_HOST:-localhost}"
 GITEA_SQL_USER="${ENV_GITEA_SQL_USER:-$GITEA_SQL_USER}"
 GITEA_SQL_PASS="${ENV_GITEA_SQL_PASS:-$GITEA_SQL_PASS}"
 GITEA_SQL_TYPE="${ENV_GITEA_SQL_TYPE:-${GITEA_SQL_TYPE:-sqlite3}}"
-HOSTNAME="${GITEA_SERVER:-${GITEA_HOSTNAME:-${FULL_DOMAIN_NAME:-$HOSTNAME}}}"
+HOSTNAME="${GITEA_SERVER:-${GITEA_HOSTNAME:-${FULL_DOMAIN_NAME:-$(hostname -f 2>/dev/null || echo "$HOSTNAME")}}}"
 GITEA_SECRET_KEY="${GITEA_SECRET_KEY:-$(__random_password 32)}"
 GITEA_LFS_JWT_SECRET="${GITEA_LFS_JWT_SECRET:-$($EXEC_CMD_BIN generate secret LFS_JWT_SECRET)}"
 GITEA_INTERNAL_TOKEN="${GITEA_INTERNAL_TOKEN:-$($EXEC_CMD_BIN generate secret INTERNAL_TOKEN)}"