diff --git a/Dockerfile b/Dockerfile
index 0d85348..c8f7610 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # --- Stage 1: Build ---
-FROM --platform=$BUILDPLATFORM golang:1.24-bullseye AS builder
+FROM --platform=$TARGETPLATFORM golang:1.24-bullseye AS builder
 
 ARG BUILDPLATFORM
 ARG TARGETPLATFORM