diff --git a/.github/workflows/multiarch.yml b/.github/workflows/multiarch.yml
index 5406cb0..bbfd512 100644
--- a/.github/workflows/multiarch.yml
+++ b/.github/workflows/multiarch.yml
@@ -41,7 +41,7 @@ jobs:
           tags: ${{ matrix.arch }}
           arch: ${{ matrix.arch }}
           build-args: |
-            ARCH=${{ matrix.arch }}
+            ALPINE_ARCH=${{ matrix.arch }}
             ALPINE_VERSION=${{ env.ALPINE_VERSION }}
             ZT_COMMIT=${{ env.ZT_COMMIT }}
             ZT_VERSION=${{ env.ZT_VERSION }}
diff --git a/Dockerfile b/Dockerfile
index cac6493..3026007 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-ARG ARCH
+ARG ALPINE_ARCH
 ARG ALPINE_VERSION
 ARG ZT_COMMIT
 ARG ZT_VERSION
 
-FROM docker.io/\${ARCH}/alpine:${ALPINE_VERSION} as builder
+FROM docker.io/\${ALPINE_ARCH}/alpine:${ALPINE_VERSION} as builder
 
 RUN apk add --update alpine-sdk linux-headers \
   && git clone --quiet https://github.com/zerotier/ZeroTierOne.git /src \
@@ -11,7 +11,7 @@ RUN apk add --update alpine-sdk linux-headers \
   && cd /src \
   && make -f make-linux.mk
 
-FROM docker.io/\${ARCH}/alpine:${ALPINE_VERSION}
+FROM docker.io/\${ALPINE_ARCH}/alpine:${ALPINE_VERSION}
 LABEL version="${ZT_VERSION}"
 LABEL description="ZeroTier One as Docker Image"