diff --git a/tac/tacchaind.Dockerfile b/tac/tacchaind.Dockerfile
index cc343124..d3e19fbc 100644
--- a/tac/tacchaind.Dockerfile
+++ b/tac/tacchaind.Dockerfile
@@ -3,6 +3,8 @@ ARG VERSION=v1.6.0
 
 FROM golang:1.23.8-alpine3.21 AS go-builder
 
+ARG VERSION
+
 RUN apk add --no-cache \
     ca-certificates \
     build-base \