diff --git a/NAMESPACE b/NAMESPACE
index 70ce4e9ec..f8c96bf9b 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -62,3 +62,4 @@ importFrom(cli,cli_warn)
 importFrom(dplyr,filter)
 importFrom(dplyr,mutate)
 importFrom(dplyr,select)
+importFrom(stats,as.formula)
diff --git a/R/epidist-package.R b/R/epidist-package.R
index 0859a1a6a..d725f340d 100644
--- a/R/epidist-package.R
+++ b/R/epidist-package.R
@@ -9,5 +9,6 @@
 #' @importFrom checkmate assert_data_frame assert_names assert_integer
 #'   assert_true assert_factor assert_numeric
 #' @importFrom cli cli_abort cli_inform cli_abort cli_warn
+#' @importFrom stats as.formula
 ## usethis namespace: end
 NULL