diff --git a/docs/awesome_table_in_pdf.Rmd b/docs/awesome_table_in_pdf.Rmd
index 6ba45ac..0a1ae16 100644
--- a/docs/awesome_table_in_pdf.Rmd
+++ b/docs/awesome_table_in_pdf.Rmd
@@ -268,7 +268,7 @@
 
 ```{r}
 kable(collapse_rows_dt, "latex", align = "c") %>%
-  column_spec(1, bold=T) %>%
-  collapse_rows()
+  column_spec(1, bold = T, width = "5em") %>%
+  collapse_rows(1:2)
 ```
 
diff --git a/docs/awesome_table_in_pdf.pdf b/docs/awesome_table_in_pdf.pdf
index 97fdb0a..162d816 100644
--- a/docs/awesome_table_in_pdf.pdf
+++ b/docs/awesome_table_in_pdf.pdf
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