diff --git a/jetstream/concepts/consumers.md b/jetstream/concepts/consumers.md
index 28f796e..7644c6d 100644
--- a/jetstream/concepts/consumers.md
+++ b/jetstream/concepts/consumers.md
@@ -115,3 +115,4 @@ If the policy is `ReplayInstant` (the default), the messages will be pushed to t
 ### SampleFrequency
 
 Sets the percentage of acknowledgements that should be sampled for observability, 0-100
+This value is a string and for example allows both `30` and `30%` as valid values.