diff --git a/man/column_spec.Rd b/man/column_spec.Rd
index c3f0e35..27f8de2 100644
--- a/man/column_spec.Rd
+++ b/man/column_spec.Rd
@@ -5,7 +5,8 @@
 \title{Specify the look of the selected column}
 \usage{
 column_spec(kable_input, column, width = NULL, bold = FALSE,
-  italic = FALSE, monospace = FALSE, color = NULL, background = NULL,
+  italic = FALSE, monospace = FALSE, underline = FALSE,
+  strikeout = FALSE, color = NULL, background = NULL,
   border_left = FALSE, border_right = FALSE, extra_css = NULL)
 }
 \arguments{
@@ -25,6 +26,12 @@
 \item{monospace}{A T/F value to control whether the text of the selected column
 need to be monospaced (verbatim)}
 
+\item{underline}{A T/F value to control whether the text of the selected row
+need to be underlined}
+
+\item{strikeout}{A T/F value to control whether the text of the selected row
+need to be stricked out.}
+
 \item{color}{A character string for column text color. Here please pay
 attention to the differences in color codes between HTML and LaTeX.}