diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 55867ca..c7063a0 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -29,6 +29,7 @@ RUN apt update && \
 ARG BUILD_BASE_IMAGE=alpine:latest
 FROM ${BUILD_BASE_IMAGE}
 
+ARG BUILD_APP_USER
 COPY --from=builder /app/hibp/build/gcc/release/* /usr/local/bin/
 
 WORKDIR /app