diff --git a/stacks/vieter.yml b/stacks/vieter.yml
index 3ab646e..0095e21 100644
--- a/stacks/vieter.yml
+++ b/stacks/vieter.yml
@@ -20,6 +20,7 @@ services:
     environment:
       - 'VIETER_API_KEY_FILE=/run/secrets/vieter_api_key'
       - 'VIETER_LOG_LEVEL=DEBUG'
+      - 'VIETER_DEFAULT_ARCH=x86_64'
     networks:
       - 'public'
     secrets: