diff --git a/system/lcd.s65 b/system/lcd.s65
index 7f852ec..6343606 100644
--- a/system/lcd.s65
+++ b/system/lcd.s65
@@ -13,6 +13,8 @@
 ; @optparam LCD_MEM: Memory address for a runtime variable. Default = $300
 ; @depends IO-W65C22N
 ;********************************************************************************
+.ifndef INCLUDE_LCD
+INCLUDE_LCD = 1
 
     .ifndef LCD_IO
     .fatal "LCD_IO is not defined: set it to the base address of the IO chip of the LCD"
@@ -228,3 +230,4 @@ LCD_CLEAR   = %00000000
     jsr _lcd_cmd
     rts
 .endproc
+.endif