diff --git a/libsrc/telestrat/cputc.s b/libsrc/telestrat/cputc.s
index 6049d1174..16b13f8cd 100644
--- a/libsrc/telestrat/cputc.s
+++ b/libsrc/telestrat/cputc.s
@@ -78,6 +78,8 @@ do_not_change_color:
     bne     @no_inc
     ldy     #$00
     sty     SCRX
+
+    inc     SCRY
     
     jmp     update_adscr