1 files changed, 5 insertions, 1 deletions
diff --git a/product/messages/AddIncomeCommandMessage.cs b/product/messages/AddIncomeCommandMessage.cs
index 85e20bb..5adb991 100644
--- a/product/messages/AddIncomeCommandMessage.cs
+++ b/product/messages/AddIncomeCommandMessage.cs
@@ -11,7 +11,7 @@ namespace solidware.financials.messages
         public DateTime Date { get; set; }
     }
 
-    public class IncomeMessage : ValueType<IncomeMessage>, Event
+    public class IncomeMessage : ValueType<IncomeMessage>, Announcement
     {
         public Guid PersonId { get; set; }
         public decimal Amount { get; set; }
@@ -21,5 +21,9 @@ namespace solidware.financials.messages
         {
             return "You got paid {0:C}!".format(Amount);
         }
+
+        public void AnnounceUsing(Announcer announcer)
+        {
+        }
     }
 }
 \ No newline at end of file