diff --git a/daemon/src/client/callmanager.h b/daemon/src/client/callmanager.h
index d85f8ad56a50683f3d163b638f21352e870f9784..49543bbfe5ee87262c4527d0c2d4e39675955aec 100644
--- a/daemon/src/client/callmanager.h
+++ b/daemon/src/client/callmanager.h
@@ -160,7 +160,7 @@ class CallManager
 
         void recordPlaybackStopped(const std::string& path);
 
-        void voiceMailNotify(const std::string& callID, const std::string& nd_msg);
+        void voiceMailNotify(const std::string& callID, const int32_t& nd_msg);
 
         void incomingMessage(const std::string& ID, const std::string& from, const std::string& msg);