diff --git a/xwords4/common/comms.c b/xwords4/common/comms.c
index 7dbad2be1..ccb3e867d 100644
--- a/xwords4/common/comms.c
+++ b/xwords4/common/comms.c
@@ -232,6 +232,8 @@ static void logAddrs( const CommsCtxt* comms, const char* caller );
 
 # else
 # define printQueue( comms )
+# define logAddr( comms, addr, caller)
+# define logAddrs( comms, caller )
 # endif
 #endif
 #if defined RELAY_HEARTBEAT || defined COMMS_HEARTBEAT
diff --git a/xwords4/common/game.c b/xwords4/common/game.c
index 978b1d0e9..03a38a11f 100644
--- a/xwords4/common/game.c
+++ b/xwords4/common/game.c
@@ -760,6 +760,7 @@ player_timePenalty( CurGameInfo* gi, XP_U16 playerNum )
     return result;
 } /* player_timePenalty */
 
+#ifdef DEBUG
 void
 game_logGI( const CurGameInfo* gi, const char* msg )
 {
@@ -776,6 +777,7 @@ game_logGI( const CurGameInfo* gi, const char* msg )
     XP_LOGF( "  gameID: %d", gi->gameID );
     XP_LOGF( "  dictName: %s", gi->dictName );
 }
+#endif
 
 #ifdef CPLUS
 }