diff --git a/lib/contracts/proposal.js b/lib/contracts/proposal.js
index e69969b..fdf0c5c 100644
--- a/lib/contracts/proposal.js
+++ b/lib/contracts/proposal.js
@@ -38,7 +38,7 @@ class Proposal extends Record {
   }
 
   addProposal () {
-    deprecate('The method: `addProposal` is deprecated use `add` instead');
+    deprecate('The function `addProposal()` is deprecated and will be removed in the next major version. Use `add()` instead');
     return this.add(...arguments);
   }
 }