diff --git a/repo2docker/docker.py b/repo2docker/docker.py
index 6b9099fd..686a70db 100644
--- a/repo2docker/docker.py
+++ b/repo2docker/docker.py
@@ -105,6 +105,7 @@ class DockerEngine(ContainerEngine):
             fileobj=fileobj,
             path=path,
             labels=labels,
+            platform="linux/amd64",
             **kwargs,
         )