diff --git a/input.c b/input.c
index a4557838..d5bf0900 100644
--- a/input.c
+++ b/input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: input.c,v 1.4 2009/06/04 14:15:50 nicm Exp $ */
+/* $OpenBSD: input.c,v 1.5 2009/06/04 14:24:49 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -400,6 +400,9 @@ input_state_sequence_first(u_char ch, struct input_ctx *ictx)
 			/* Abort sequence and begin with new. */
 			input_state(ictx, input_state_escape);
 		} else if (ch != 0x18 && ch != 0x1a) {	/* CAN and SUB */
+			/* Abort sequence. */
+			input_state(ictx, input_state_first);
+		} else {
 			/* Handle C0 immediately. */
 			input_handle_c0_control(ch, ictx);
 		}
@@ -465,6 +468,9 @@ input_state_sequence_next(u_char ch, struct input_ctx *ictx)
 			/* Abort sequence and begin with new. */
 			input_state(ictx, input_state_escape);
 		} else if (ch != 0x18 && ch != 0x1a) {	/* CAN and SUB */
+			/* Abort sequence. */
+			input_state(ictx, input_state_first);
+		} else  {
 			/* Handle C0 immediately. */
 			input_handle_c0_control(ch, ictx);
 		}