diff --git a/operator/README.md b/operator/README.md
index d3500df..b713568 100644
--- a/operator/README.md
+++ b/operator/README.md
@@ -171,7 +171,7 @@
 
     ## Selector (https://kubernetes.io/docs/concepts/storage/persistent-volumes/#selector)
     ## to select a specific persistent volume (optional)
-    selector: {}
+    selector: null
       # matchLabels:
       #   volume-type: ssd
       #   aws-availability-zone: us-east-1
@@ -186,7 +186,7 @@
 
     ## Selector (https://kubernetes.io/docs/concepts/storage/persistent-volumes/#selector)
     ## to select a specific persistent volume (optional)
-    selector: {}
+    selector: null
       # matchLabels:
       #   volume-type: ssd
       #   aws-availability-zone: us-east-1