diff --git a/main.tex b/main.tex
index 7075292..30a2a3f 100644
--- a/main.tex
+++ b/main.tex
@@ -1,8 +1,7 @@
 %%%% This is the general thesis/project report template for most users
-\documentclass[showtrims,b5paper]{rubook}
+\documentclass[showtrims]{rubook}
 %% RU Book options (subclass of memoir)
-%% showtrims:  indicate where printer will cut to size
-%% a4paper or b5paper:  paper stock size.
+%% a4paper or b5paper(default):  paper stock size.
 %%     If A4, show cut lines.  If b5, no cut lines.
 \usepackage[]{ruthesis}
 %% Options for ruthesis in []: