diff --git a/R/get_df.R b/R/get_df.R
index c596724ec..81b5374db 100644
--- a/R/get_df.R
+++ b/R/get_df.R
@@ -5,8 +5,8 @@
 #'   from regression models.
 #'
 #' @param x A statistical model.
-#' @param type Can be `"residual"`, `"wald"`, `"normal"`, or
-#'   `"model"`. `"analytical"` is an alias for `"residual"`.
+#' @param type Type of approximation for the degrees of freedom. Can be one of
+#' the following:
 #'
 #'   + `"residual"` (aka `"analytical"`) returns the residual degrees of
 #'     freedom, which usually is what [`stats::df.residual()`] returns. If a
diff --git a/man/get_df.Rd b/man/get_df.Rd
index 7577f207e..f6478db55 100644
--- a/man/get_df.Rd
+++ b/man/get_df.Rd
@@ -14,8 +14,8 @@ get_df(x, ...)
 
 \item{...}{Currently not used.}
 
-\item{type}{Can be \code{"residual"}, \code{"wald"}, \code{"normal"}, or
-\code{"model"}. \code{"analytical"} is an alias for \code{"residual"}.
+\item{type}{Type of approximation for the degrees of freedom. Can be one of
+the following:
 \itemize{
 \item \code{"residual"} (aka \code{"analytical"}) returns the residual degrees of
 freedom, which usually is what \code{\link[stats:df.residual]{stats::df.residual()}} returns. If a