diff --git a/examples/prometheus-agent.jsonnet b/examples/prometheus-agent.jsonnet
index 52a6440937a88609f6fe91bcb172f35764a6def1..db56bb9d4084403a455721047b6f0be72ab1f565 100644
--- a/examples/prometheus-agent.jsonnet
+++ b/examples/prometheus-agent.jsonnet
@@ -20,6 +20,7 @@ local kp =
         spec+: {
           replicas: 1,
           alerting:: {},
+          ruleSelector:: {},
           remoteWrite: [{
             url: 'http://remote-write-url.com',
           }],