diff --git a/c64/basic/c000.skip_gap.s b/c64/basic/c000.skip_gap.s
index 032cf40d..eda4ce47 100644
--- a/c64/basic/c000.skip_gap.s
+++ b/c64/basic/c000.skip_gap.s
@@ -1,4 +1,4 @@
 	;; Skip the gap between $C000-$DFFF
 	.checkpc $C000
-	.advance $2000,$00
+	.advance $DFFF,$00
 	.checkpc $E000