diff --git a/cmd/grafana-agent/Dockerfile b/cmd/grafana-agent/Dockerfile
index f03bd4efdfd0..243fec6f08e5 100644
--- a/cmd/grafana-agent/Dockerfile
+++ b/cmd/grafana-agent/Dockerfile
@@ -32,6 +32,8 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
 
 FROM ubuntu:lunar
 
+EXPOSE 9091
+
 LABEL org.opencontainers.image.source="https://github.com/grafana/agent"
 
 # Install dependencies needed at runtime.