diff --git a/DESCRIPTION b/DESCRIPTION
index 03cd5cc85..f72aa4364 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -67,6 +67,7 @@ Suggests:
     ggdist,
     kableExtra,
     knitr,
+    rlang,
     rmarkdown,
     testthat (>= 3.1.9),
     vdiffr
diff --git a/tests/testthat/test-metrics-interval-range.R b/tests/testthat/test-metrics-interval-range.R
index 5e69e4e53..dd24315d8 100644
--- a/tests/testthat/test-metrics-interval-range.R
+++ b/tests/testthat/test-metrics-interval-range.R
@@ -20,6 +20,7 @@ test_that("assert_input_interval() works as expected", {
   )
 
   # expect warning if interval range is < 1
+  rlang::reset_warning_verbosity("small_interval_range")
   expect_warning(
     assert_input_interval(observed, lower, upper, 0.5),
     "Found interval ranges between 0 and 1. Are you sure that's right?"
@@ -27,6 +28,17 @@ test_that("assert_input_interval() works as expected", {
 })
 
 
+test_that("assert_input_interval() warns about small interval_range on repeated calls", {
+  rlang::reset_warning_verbosity("small_interval_range")
+  suppressWarnings(assert_input_interval(observed, lower, upper, 0.5))
+  rlang::reset_warning_verbosity("small_interval_range")
+  expect_warning(
+    assert_input_interval(observed, lower, upper, 0.5),
+    "Found interval ranges between 0 and 1"
+  )
+})
+
+
 test_that("check_input_interval() works as expected", {
   expect_no_condition(
     check_input_interval(observed, lower, upper, interval_range)