diff --git a/examples/cockroachdb/cockroachdb-statefulset.yaml b/examples/cockroachdb/cockroachdb-statefulset.yaml
index 7bb06e7d628..b04c5e01cb4 100644
--- a/examples/cockroachdb/cockroachdb-statefulset.yaml
+++ b/examples/cockroachdb/cockroachdb-statefulset.yaml
@@ -110,7 +110,7 @@ spec:
           - weight: 100
             podAffinityTerm:
               labelSelector:
-                matchExpress:
+                matchExpressions:
                 - key: app
                   operator: In
                   values: