diff --git a/Dockerfile b/Dockerfile
index 5c52168..42e0f45 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,5 @@
 # FROM ubuntu:focal
+ARG TARGETPLATFORM
 FROM --platform=${TARGETPLATFORM:-linux/amd64} ubuntu:focal
 ARG TARGETPLATFORM
 ARG BUILD_DATE
diff --git a/scripts/buildx.sh b/scripts/buildx.sh
index b3705b1..2084627 100755
--- a/scripts/buildx.sh
+++ b/scripts/buildx.sh
@@ -12,10 +12,10 @@ docker buildx create --name "${BUILDX_NAME:-certbot}" || echo
 docker buildx use "${BUILDX_NAME:-certbot}"
 
 docker buildx build \
-	-f Dockerfile \
-    -t ${REGISTRY}/certbot_only:${TAG} \
 	--no-cache \
-	--platform linux/amd64,linux/arm/v7,linux/arm64 \
+	--platform linux/amd64,linux/arm64 \
+	--file Dockerfile \
+    --tag ${REGISTRY}/certbot_only:${TAG} \
 	--push \
 	.