diff --git a/R/FilteredData.R b/R/FilteredData.R
index 9b56ee937..c36227c80 100644
--- a/R/FilteredData.R
+++ b/R/FilteredData.R
@@ -307,9 +307,6 @@ FilteredData <- R6::R6Class( # nolint
     set_dataset = function(data, dataname) {
       checkmate::assert_string(dataname)
       logger::log_debug("FilteredData$set_dataset setting dataset, name: { dataname }")
-      # to include it nicely in the Show R Code;
-      # the UI also uses `datanames` in ids, so no whitespaces allowed
-      check_simple_name(dataname)
 
       parent_dataname <- teal.data::parent(private$join_keys, dataname)
       keys <- private$join_keys[dataname, dataname]
diff --git a/R/FilteredDataset.R b/R/FilteredDataset.R
index 998f5f4d8..830d3ed14 100644
--- a/R/FilteredDataset.R
+++ b/R/FilteredDataset.R
@@ -30,7 +30,6 @@ FilteredDataset <- R6::R6Class( # nolint
     #' @return Object of class `FilteredDataset`, invisibly.
     #'
     initialize = function(dataset, dataname, keys = character(0), label = attr(dataset, "label", exact = TRUE)) {
-      check_simple_name(dataname)
       logger::log_debug("Instantiating { class(self)[1] }, dataname: { dataname }")
       checkmate::assert_character(keys, any.missing = FALSE)
       checkmate::assert_character(label, null.ok = TRUE)
diff --git a/R/utils.R b/R/utils.R
index 725f5a8c9..862d7f729 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -1,28 +1,3 @@
-#' Test whether variable name can be used within `Show R Code`
-#'
-#' Variable names containing spaces are problematic and must be wrapped in backticks.
-#' Also, they should not start with a number as `R` may silently make it valid by changing it.
-#' Therefore, we only allow alphanumeric characters with underscores.
-#' The first character of the `name` must be an alphabetic character and can be followed by alphanumeric characters.
-#'
-#' @md
-#'
-#' @param name (`character`) vector of names to check
-#' @return Returns `NULL` or raises error.
-#' @keywords internal
-#'
-check_simple_name <- function(name) {
-  checkmate::assert_character(name, min.len = 1, any.missing = FALSE)
-  if (!grepl("^[[:alpha:]][a-zA-Z0-9_]*$", name, perl = TRUE)) {
-    stop(
-      "name '",
-      name,
-      "' must only contain alphanumeric characters (with underscores)",
-      " and the first character must be an alphabetic character"
-    )
-  }
-}
-
 #' Include `JS` files from `/inst/js/` package directory to application header
 #'
 #' `system.file` should not be used to access files in other packages, it does
diff --git a/man/check_simple_name.Rd b/man/check_simple_name.Rd
deleted file mode 100644
index b8472b5fb..000000000
--- a/man/check_simple_name.Rd
+++ /dev/null
@@ -1,21 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/utils.R
-\name{check_simple_name}
-\alias{check_simple_name}
-\title{Test whether variable name can be used within \verb{Show R Code}}
-\usage{
-check_simple_name(name)
-}
-\arguments{
-\item{name}{(\code{character}) vector of names to check}
-}
-\value{
-Returns \code{NULL} or raises error.
-}
-\description{
-Variable names containing spaces are problematic and must be wrapped in backticks.
-Also, they should not start with a number as \code{R} may silently make it valid by changing it.
-Therefore, we only allow alphanumeric characters with underscores.
-The first character of the \code{name} must be an alphabetic character and can be followed by alphanumeric characters.
-}
-\keyword{internal}