diff --git a/Dockerfile b/Dockerfile
index 5e3c851..a872b1d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,6 @@ RUN cp -rf /lib/*-linux-*/libunistring* /ulib
 
 FROM busybox:stable-glibc
 
-ARG ARCH
 #copy all necessary libraries
 COPY --from=deploy-env /ulib/* /lib/
 COPY --from=deploy-env /bin/wget /bin/