diff --git a/src/network/transportsender.cc b/src/network/transportsender.cc
index 66427c9..bf4af6b 100644
--- a/src/network/transportsender.cc
+++ b/src/network/transportsender.cc
@@ -260,7 +260,8 @@ void TransportSender<MyState>::rationalize_states( void )
   }
 }
 
-static const string make_chaff( void )
+template <class MyState>
+const string TransportSender<MyState>::make_chaff( void )
 {
   const int CHAFF_MAX = 16;
 
diff --git a/src/network/transportsender.h b/src/network/transportsender.h
index e49e036..f016bdf 100644
--- a/src/network/transportsender.h
+++ b/src/network/transportsender.h
@@ -86,6 +86,8 @@ namespace Network {
 
     uint64_t last_heard; /* last time received new state */
 
+    static const string make_chaff( void );
+
   public:
     /* constructor */
     TransportSender( Connection *s_connection, MyState &initial_state );