diff --git a/portainer/Dockerfile b/portainer/Dockerfile
index 817a9b69e..d34ba857e 100644
--- a/portainer/Dockerfile
+++ b/portainer/Dockerfile
@@ -8,7 +8,7 @@ SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
 # Setup base
 
-ARG BUILD_ARCH
+ARG BUILD_ARCH=amd64 
 RUN \
     if [ "${BUILD_ARCH}" = "aarch64" ]; then ARCH="arm64"; fi \
     && if [ "${BUILD_ARCH}" = "armhf" ]; then ARCH="arm"; fi \