diff --git a/charmcraft/services/image.py b/charmcraft/services/image.py
index cc2827b07..25626681c 100644
--- a/charmcraft/services/image.py
+++ b/charmcraft/services/image.py
@@ -98,6 +98,8 @@ def copy(
             dest_username=dest_username,
             dest_password=dest_password,
             preserve_digests=True,
+            # all_images allows uploading multi-arch OCI images.
+            all_images=True,
         )
 
     @staticmethod