diff --git a/contrib/podmanimage/upstream/Containerfile b/contrib/podmanimage/upstream/Containerfile
index d5ddef106e..e31b94746f 100644
--- a/contrib/podmanimage/upstream/Containerfile
+++ b/contrib/podmanimage/upstream/Containerfile
@@ -64,4 +64,5 @@ RUN mkdir -p /var/lib/shared/overlay-images \
     touch /var/lib/shared/vfs-images/images.lock && \
     touch /var/lib/shared/vfs-layers/layers.lock
 
-ENV _CONTAINERS_USERNS_CONFIGURED=""
+ENV _CONTAINERS_USERNS_CONFIGURED="" \
+    BUILDAH_ISOLATION=chroot