diff --git a/DESCRIPTION b/DESCRIPTION
index a0f8acd68a..bba370c417 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -3,7 +3,7 @@ Version: 1.18.99
 Title: Extension of `data.frame`
 Depends: R (>= 3.5.0)
 Imports: methods
-Suggests: bit64 (>= 4.0.0), R.utils, xts, zoo (>= 1.8-1), yaml, litedown
+Suggests: bit64 (>= 4.0.0), R.utils, xts, zoo (>= 1.8-1), yaml, litedown, codetools
 Enhances: knitr, xfun
 Description: Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins, fast add/modify/delete of columns by group using no copies at all, list columns, friendly and fast character-separated-value read/write. Offers a natural and flexible syntax, for faster development.
 License: MPL-2.0 | file LICENSE
diff --git a/man/update_dev_pkg.Rd b/man/update_dev_pkg.Rd
index 66fff0422d..78b0386b4e 100644
--- a/man/update_dev_pkg.Rd
+++ b/man/update_dev_pkg.Rd
@@ -34,7 +34,8 @@
   Invisibly \code{TRUE} if package was updated, otherwise \code{FALSE}.
 }
 \examples{
-\dontshow{ # using if(FALSE) because \dontrun could still be run by  --run-dontrun; #5421 }
+\dontshow{ # using if(FALSE) because \dontrun could still be run by  --run-dontrun; #5421
+}
   if (FALSE) data.table::update_dev_pkg()
 }
 \seealso{