diff --git a/libsrc/apple2/_scrsize.s b/libsrc/apple2/_scrsize.s
index df849510c..3f496454b 100644
--- a/libsrc/apple2/_scrsize.s
+++ b/libsrc/apple2/_scrsize.s
@@ -10,8 +10,8 @@
 
 .proc   screensize
 
-        ldx     #XSIZE
-        ldy     #YSIZE
+        ldx     MAX_X
+        ldy     MAX_Y
         rts
 
 .endproc
diff --git a/libsrc/apple2/apple2.inc b/libsrc/apple2/apple2.inc
index 6b89bfba3..c79bb2859 100644
--- a/libsrc/apple2/apple2.inc
+++ b/libsrc/apple2/apple2.inc
@@ -20,12 +20,6 @@ MEMSIZE	=	$73		; Highest free RAM location
 BRKVec  =       $03F0           ; Break vector
 RESTOR	=	$03D0           ; Goto Dos
 
-; ---------------------------------------------------------------------------
-; Screen size
-
-XSIZE           = 40
-YSIZE           = 24
-
 ;-----------------------------------------------------------------------------
 ; Hardware