diff --git a/src/buffer.c b/src/buffer.c
index a925552..68388db 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -275,6 +275,8 @@
 	{
 	    curbuf->b_p_bin = save_bin;
 	    if (retval == OK)
+		// don't add READ_FIFO here, otherwise we won't be able to
+		// detect the encoding
 		retval = read_buffer(FALSE, eap, flags);
 	}
 #endif