diff --git a/xC.c b/xC.c
index 5d3eb67..a589836 100644
--- a/xC.c
+++ b/xC.c
@@ -616,7 +616,7 @@ input_rl_buffer_add_history (void *input, input_buffer_t input_buffer,
 	// or temporarily switch histories.
 	if (!buffer->history)
 	{
-		bool at_end = history_offset == history_length;
+		bool at_end = where_history () == history_length;
 		add_history (line);
 		if (at_end)
 			next_history ();