diff --git a/Dockerfile b/Dockerfile
index c250162..6580fdc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@ WORKDIR /app/
 RUN addgroup -S nomad-var-dirsync && adduser -S nomad-var-dirsync -G nomad-var-dirsync
 
 # Copy binary in
-COPY ./dist/nomad-var-dirsync-TARGETOS-TARGETARCH ./nomad-var-dirsync
+COPY ./dist/nomad-var-dirsync-${TARGETOS}-${TARGETARCH} ./nomad-var-dirsync
 
 # Drop to non-root user
 USER nomad-var-dirsync
diff --git a/Dockerfile.multi-stage b/Dockerfile.multi-stage
index d101053..154d30d 100644
--- a/Dockerfile.multi-stage
+++ b/Dockerfile.multi-stage
@@ -12,7 +12,7 @@ RUN go mod download
 COPY ./*.go /app/
 
 ARG VERSION=dev
-ENV CGO_ENABLED=0 GOOS=TARGETOS GOARCH=TARGETARCH
+ENV CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH}
 RUN go build -ldflags "-X main.version=VERSION" -a -installsuffix nocgo -o nomad-var-dirsync .
 
 FROM REPO/alpine:3.19