diff --git a/NEWS.md b/NEWS.md
index 48b35b52..633858c9 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -24,6 +24,8 @@ calculated with `roc_auc_survival()`.
 
 * Metrics now throw more informative error if `estimate` argument is wrongly used. (#443)
 
+* Curve metrics now throw an informative error instead of returning `NA` when missing values are found and `na_rm = FALSE`. (#344)
+
 # yardstick 1.2.0
 
 ## New Metrics
diff --git a/R/prob-gain_curve.R b/R/prob-gain_curve.R
index 569f9eae..19249c0e 100644
--- a/R/prob-gain_curve.R
+++ b/R/prob-gain_curve.R
@@ -148,7 +148,10 @@ gain_curve_vec <- function(truth,
     estimate <- result$estimate
     case_weights <- result$case_weights
   } else if (yardstick_any_missing(truth, estimate, case_weights)) {
-    return(NA_real_)
+    cli::cli_abort(c(
+      x = "Missing values were detected and {.code na_ra = FALSE}.",
+      i = "Not able to perform calculations."
+    ))
   }
 
   gain_curve_estimator_impl(
diff --git a/R/prob-pr_curve.R b/R/prob-pr_curve.R
index c666adae..36067c19 100644
--- a/R/prob-pr_curve.R
+++ b/R/prob-pr_curve.R
@@ -104,7 +104,10 @@ pr_curve_vec <- function(truth,
     estimate <- result$estimate
     case_weights <- result$case_weights
   } else if (yardstick_any_missing(truth, estimate, case_weights)) {
-    return(NA_real_)
+    cli::cli_abort(c(
+      x = "Missing values were detected and {.code na_ra = FALSE}.",
+      i = "Not able to perform calculations."
+    ))
   }
 
   pr_curve_estimator_impl(
diff --git a/R/prob-roc_curve.R b/R/prob-roc_curve.R
index 46786a4e..73dbc084 100644
--- a/R/prob-roc_curve.R
+++ b/R/prob-roc_curve.R
@@ -111,7 +111,10 @@ roc_curve_vec <- function(truth,
     estimate <- result$estimate
     case_weights <- result$case_weights
   } else if (yardstick_any_missing(truth, estimate, case_weights)) {
-    return(NA_real_)
+    cli::cli_abort(c(
+      x = "Missing values were detected and {.code na_ra = FALSE}.",
+      i = "Not able to perform calculations."
+    ))
   }
 
   # estimate here is a matrix of class prob columns
diff --git a/R/surv-roc_curve_survival.R b/R/surv-roc_curve_survival.R
index 6ac25c38..1a0edfc9 100644
--- a/R/surv-roc_curve_survival.R
+++ b/R/surv-roc_curve_survival.R
@@ -118,13 +118,11 @@ roc_curve_survival_vec <- function(truth,
     truth <- result$truth
     estimate <- estimate[result$estimate]
     case_weights <- result$case_weights
-  } else {
-    any_missing <- yardstick_any_missing(
-      truth, estimate, case_weights
-    )
-    if (any_missing) {
-      return(NA_real_)
-    }
+  } else if (yardstick_any_missing(truth, estimate, case_weights)) {
+    cli::cli_abort(c(
+      x = "Missing values were detected and {.code na_ra = FALSE}.",
+      i = "Not able to perform calculations."
+    ))
   }
 
   roc_curve_survival_impl(
diff --git a/tests/testthat/_snaps/template.md b/tests/testthat/_snaps/template.md
index 88c0743a..38826bb9 100644
--- a/tests/testthat/_snaps/template.md
+++ b/tests/testthat/_snaps/template.md
@@ -100,6 +100,16 @@
       x This metric doesn't use the `estimate` argument.
       i Specify the columns without `estimate = `.
 
+# curve_metric_summarizer()'s na_rm argument work
+
+    Code
+      curve_metric_summarizer(name = "roc_curve", fn = roc_curve_vec, data = hpc_f1_na,
+        truth = obs, VF:L, na_rm = FALSE, case_weights = NULL)
+    Condition
+      Error:
+      x Missing values were detected and `na_ra = FALSE`.
+      i Not able to perform calculations.
+
 # curve_metric_summarizer()'s errors when wrong things are passes
 
     Code
@@ -207,6 +217,16 @@
       x Problematic argument:
       * obviouslywrong = TRUE
 
+# curve_survival_metric_summarizer()'s na_rm argument works
+
+    Code
+      curve_survival_metric_summarizer(name = "roc_curve_survival", fn = roc_curve_survival_vec,
+        data = lung_surv, truth = surv_obj, .pred, na_rm = FALSE, case_weights = NULL)
+    Condition
+      Error:
+      x Missing values were detected and `na_ra = FALSE`.
+      i Not able to perform calculations.
+
 # curve_survival_metric_summarizer()'s errors with bad input
 
     Code
diff --git a/tests/testthat/test-template.R b/tests/testthat/test-template.R
index 84358192..8d4642d1 100644
--- a/tests/testthat/test-template.R
+++ b/tests/testthat/test-template.R
@@ -899,23 +899,18 @@ test_that("curve_metric_summarizer()'s na_rm argument work", {
 
   expect_identical(roc_curve_res, roc_curve_exp)
 
-  roc_curve_res <- curve_metric_summarizer(
-    name = "roc_curve",
-    fn = roc_curve_vec,
-    data = hpc_f1_na,
-    truth = obs,
-    VF:L,
-    na_rm = FALSE,
-    case_weights = NULL
-  )
-
-  roc_curve_exp <- dplyr::tibble(
-    .metric = "roc_curve",
-    .estimator = "multiclass",
-    .estimate = na_dbl
+  expect_snapshot(
+    error = TRUE,
+    curve_metric_summarizer(
+      name = "roc_curve",
+      fn = roc_curve_vec,
+      data = hpc_f1_na,
+      truth = obs,
+      VF:L,
+      na_rm = FALSE,
+      case_weights = NULL
+    )
   )
-
-  expect_identical(roc_curve_res, roc_curve_exp)
 })
 
 test_that("curve_metric_summarizer()'s case_weights argument work", {
@@ -1613,23 +1608,18 @@ test_that("curve_survival_metric_summarizer()'s na_rm argument works", {
 
   expect_identical(roc_curve_survival_res, roc_curve_survival_exp)
 
-  roc_curve_survival_res <- curve_survival_metric_summarizer(
-    name = "roc_curve_survival",
-    fn = roc_curve_survival_vec,
-    data = lung_surv,
-    truth = surv_obj,
-    .pred,
-    na_rm = FALSE,
-    case_weights = NULL
-  )
-
-  roc_curve_survival_exp <- dplyr::tibble(
-    .metric = "roc_curve_survival",
-    .estimator = "standard",
-    .estimate = na_dbl
+  expect_snapshot(
+    error = TRUE,
+    curve_survival_metric_summarizer(
+      name = "roc_curve_survival",
+      fn = roc_curve_survival_vec,
+      data = lung_surv,
+      truth = surv_obj,
+      .pred,
+      na_rm = FALSE,
+      case_weights = NULL
+    )
   )
-
-  expect_identical(roc_curve_survival_res, roc_curve_survival_exp)
 })
 
 test_that("curve_survival_metric_summarizer()'s case_weights argument works", {