diff --git a/commands/CmdRS.c b/commands/CmdRS.c
index cb96fdcd..449508b2 100644
--- a/commands/CmdRS.c
+++ b/commands/CmdRS.c
@@ -62,8 +62,6 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include "router/router.h"
 #include "wiring/wiring.h"
 
-extern void DisplayWindow();
-
 /* Used by CmdSetLabel() */
 Label *DefaultLabel;
 
diff --git a/commands/CmdTZ.c b/commands/CmdTZ.c
index c77afa7f..1b88d167 100644
--- a/commands/CmdTZ.c
+++ b/commands/CmdTZ.c
@@ -57,8 +57,6 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include "yacr.h"
 #endif	/* LLNL */
 
-extern void DisplayWindow();
-
 /* Trivial function that returns 1 if called */
 
 int