diff --git a/man/cell_spec.Rd b/man/cell_spec.Rd
index 40966ca..d50b580 100644
--- a/man/cell_spec.Rd
+++ b/man/cell_spec.Rd
@@ -8,7 +8,7 @@
 cell_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
   color = NULL, background = NULL, align = NULL, font_size = NULL,
   angle = NULL, tooltip = NULL, popover = NULL, link = NULL,
-  escape = TRUE, background_as_tile = TRUE,
+  extra_css = NULL, escape = TRUE, background_as_tile = TRUE,
   latex_background_in_cell = TRUE)
 
 text_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
@@ -61,6 +61,8 @@
 \item{link}{A vector of strings for url links. Can be used together with
 tooltip and popover.}
 
+\item{extra_css}{Extra css text to be passed into the cell}
+
 \item{escape}{T/F value showing whether special characters should be escaped.}
 
 \item{background_as_tile}{T/F value indicating if you want to have round