diff --git a/ggradar.Rmd b/ggradar.Rmd
index dce1348..1ea1cde 100644
--- a/ggradar.Rmd
+++ b/ggradar.Rmd
@@ -17,7 +17,7 @@ suppressPackageStartupMessages(library(dplyr))
 library(scales)
 
 mtcars %>%
-     add_rownames( var = "group" ) %>%
+     rownames_to_column( var = "group" ) %>%
      mutate_each(funs(rescale), -group) %>%
      tail(4) %>% select(1:10) -> mtcars_radar
 
@@ -42,4 +42,4 @@ This package requires the Airbnb font and the extrafont package.
 download.file("https://dl.dropboxusercontent.com/u/2364714/airbnb_ttf_fonts/Circular Air-Light 3.46.45 PM.ttf", "/Library/Fonts/Circular Air-Light 3.46.45 PM.ttf", method="curl")
 
 extrafont::font_import(pattern = 'Circular', prompt=FALSE)
-```
\ No newline at end of file
+```