diff --git a/Dockerfile.wolfi b/Dockerfile.wolfi
index 3d94ffd5..2eeeea73 100644
--- a/Dockerfile.wolfi
+++ b/Dockerfile.wolfi
@@ -26,6 +26,10 @@ WORKDIR /eland
 ENV VIRTUAL_ENV=/eland/venv
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
+# Use the same `USER` instruction as Elasticsearch to make sure Eland can read
+# a volume with Elasticsearch data in it. This is useful for --ca-cert.
+USER 1000:0
+
 COPY --from=builder /eland /eland
 
 # The eland_import_hub_model script is intended to be executed by a shell,