diff --git a/src/hw.mockingboard.a b/src/hw.mockingboard.a
index 578771571..72e3fd150 100644
--- a/src/hw.mockingboard.a
+++ b/src/hw.mockingboard.a
@@ -28,6 +28,16 @@
 ;------------------------------------------------------------------------------
 GetMockingboardStuff
          +ST16 @callback+1
+         lda   ROM_MACHINEID
+         cmp   #$06
+         bne   @not_iic
+         ldx   ROM_MACHINE2C
+         bne   @not_iic
+         dex                         ; enable Mockingboard 4C support
+         stx   $C403
+         stx   $C404
+
+@not_iic
          lda   #$00
          sta   $80
          sta   $82                   ; type
diff --git a/winmake.bat b/winmake.bat
index 11d11123e..d62bd49c3 100644
--- a/winmake.bat
+++ b/winmake.bat
@@ -80,7 +80,7 @@ call :compress
 goto :EOF
 )
 
-echo usage: %0 clean / asm / dsk
+echo usage: %0 clean / dsk
 goto :EOF
 
 :index