diff --git a/policy/doc.go b/policy/doc.go
index bfde740..d537585 100644
--- a/policy/doc.go
+++ b/policy/doc.go
@@ -7,7 +7,7 @@
  | 'c' + uint16(len(container)) + container | []byte | Namespace chain                   |
  | 'n' + uint16(len(namespace)) + namespace | []byte | Container chain                   |
  | 'm' + entity name (namespace/container)  | []byte | Mapped name to an encoded number  |
- | 'counter'                                | uint64 | Integer counter used for mapping  |
+ | 'Counter'                                | uint64 | Integer counter used for mapping  |
 
 */
 
diff --git a/policy/policy_contract.go b/policy/policy_contract.go
index 64a131c..a199ebd 100644
--- a/policy/policy_contract.go
+++ b/policy/policy_contract.go
@@ -24,7 +24,7 @@ const (
 
 const (
 	mappingKeyPrefix = 'm'
-	counterKey       = "counter"
+	counterKey       = "Counter"
 )
 
 const (