diff --git a/include/nwnss/include/switchboard.h b/include/nwnss/include/switchboard.h
index 5dc6b1b..d1f1b4d 100644
--- a/include/nwnss/include/switchboard.h
+++ b/include/nwnss/include/switchboard.h
@@ -86,6 +86,6 @@ extern STATUS SWBD_DemandKey(SWBDClient_s *client, unicode_t *name, Key_t key);
 extern STATUS SWBD_SupplyLocal(SWBDClient_s *client, unicode_t *name, Key_t key);
 extern STATUS SWBD_SupplyRemote(SWBDClient_s *client, unicode_t *name, Key_t key);
 extern STATUS SWBD_SupplyAll(Key_t key);
-extern void   SWBD_DumpSwitchboard ();
+extern void   SWBD_DumpSwitchboard(char *buf, int bufLen);
 
 #endif