diff --git a/acl/types.proto b/acl/types.proto
index e48f7d9..8bd0466 100644
--- a/acl/types.proto
+++ b/acl/types.proto
@@ -176,7 +176,7 @@ message EACLRecord {
     // Target subject's role class
     Role role = 1 [json_name="role"];
 
-    // List of public keys to identify target subject
+    // List of public keys or accounts (scripthash from public key) to identify target subject
     repeated bytes keys = 2 [json_name="keys"];
   }
   // List of target subjects to apply ACL rule to