diff --git a/R/extract.R b/R/extract.R
index 3ed40fa3b..29ca75019 100644
--- a/R/extract.R
+++ b/R/extract.R
@@ -92,6 +92,17 @@ extract_parameter_set_dials.model_spec <- function(x, ...) {
   all_args <- generics::tunable(x)
   tuning_param <- generics::tune_args(x)
 
+  if (nrow(all_args) == 0 || nrow(tuning_param) == 0) {
+    res <- tibble::new_tibble(list(
+      name = character(0),
+      id = character(0),
+      source = character(0),
+      component = character(0),
+      call_info = list(),
+      component_id = character(0),
+      object = list()
+    ))
+  } else {
   res <-
     dplyr::inner_join(
       tuning_param |> dplyr::select(-tunable, -component_id),
@@ -100,6 +111,7 @@ extract_parameter_set_dials.model_spec <- function(x, ...) {
     ) |>
     mutate(object = purrr::map(call_info, eval_call_info))
 
+  }
   dials::parameters_constr(
     res$name,
     res$id,
diff --git a/R/translate.R b/R/translate.R
index cb5815c98..a16b1f257 100644
--- a/R/translate.R
+++ b/R/translate.R
@@ -206,6 +206,14 @@ add_methods <- function(x, engine) {
 
   # To translate from given names/ids in grid to parsnip names:
   params <- object |> hardhat::extract_parameter_set_dials()
+  if (nrow(params) == 0) {
+    res <- tibble::new_tibble(list(
+      user = character(0),
+      parsnip = character(0),
+      engine = character(0)
+    ))
+    return(res)
+  }
   params <- tibble::as_tibble(params) |>
     dplyr::select(user = id, parsnip = name)
   # Go from parsnip names to engine names