diff --git a/store/store.go b/store/store.go
index <HASH>..<HASH> 100644
--- a/store/store.go
+++ b/store/store.go
@@ -99,6 +99,7 @@ type statsToken struct {
 }
 
 // statsKey returns the compound statistics identifier that represents key.
+// If write is true, the identifier will be created if necessary.
 // Identifiers have a form similar to "ab:c:def:", where each section is a
 // base-32 number that represents the respective word in key. This form
 // allows efficiently indexing and searching for prefixes, while detaching
Add comment about write parameter, as mentioned by Rog.