diff --git a/docker-compose.yml b/docker-compose.yml
index cca68e5caf510..c17e43d604b0c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -41,6 +41,8 @@ services:
     #   or
     #   docker-compose run -e NUM_THREADS=<NUMBER_OF_THREADS_TO_USE> --rm adapters-cpp
     #   to set the number of threads used during compilation
+    # scripts/adapters.dockerfile uses SHELL which is not supported for OCI image format.
+    # podman users must specify "--podman-build-args='--format docker'" argument.
     image: ghcr.io/facebookincubator/velox-dev:adapters
     build:
       context: .