diff --git a/man/footnote.Rd b/man/footnote.Rd
index 8cda4fc..6152876 100644
--- a/man/footnote.Rd
+++ b/man/footnote.Rd
@@ -50,7 +50,7 @@
 footnotes as a chunk of texts.
 }
 \examples{
-x <- mtcars[1:5, 1:5]
+dt <- mtcars[1:5, 1:5]
 footnote(knitr::kable(dt, "html"), alphabet = c("Note a", "Note b"))
 
 }