diff --git a/src/apple2.dbuf.c b/src/apple2.dbuf.c
index dc47126..bde7c98 100644
--- a/src/apple2.dbuf.c
+++ b/src/apple2.dbuf.c
@@ -22,9 +22,6 @@ static size_t switch_writes[] = {
     0xC051,
     0xC052,
     0xC053,
-    0xC056,
-    0xC057,
-    0xC059,
     0xC05E,
     0xC05F,
     0xC07E,