diff --git a/Dockerfile.builder b/Dockerfile.builder
index b075dda..75b1e3c 100644
--- a/Dockerfile.builder
+++ b/Dockerfile.builder
@@ -1,5 +1,7 @@
 FROM alpine:3.12
 
+ARG TARGETPLATFORM
+
 WORKDIR /opt/vlang
 
 ENV VVV  /opt/vlang