diff --git a/R/utils.R b/R/utils.R
index 9c3c99c..833a2fa 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -158,7 +158,7 @@ race_short_names <- function(x) {
 #' na_sum(x) # 15
 na_sum <- function(x) {
   stopifnot(is.numeric(x))
-  message("Taking a sum with missing values equal to 0, be careful! \u1F601")
+  message("Taking a sum with missing values equal to 0, be careful!")
   x <- na_zero(x)
   return(sum(x))
 }
diff --git a/tests/testthat/test_utils.R b/tests/testthat/test_utils.R
index 5ffc6f4..acba675 100644
--- a/tests/testthat/test_utils.R
+++ b/tests/testthat/test_utils.R
@@ -50,7 +50,7 @@ test_that("Function subs out NAs in numeric vectors with 0", {
 # Test that na_sum works
 test_that("NA Sum takes sum setting NA values to 0", {
   expect_equivalent(na_sum(c(1:10, NA)), sum(1:10, 0))
-  expect_message(na_sum(c(1:10, NA)), "Taking a sum with missing values equal to 0, be careful! \u1F601")
+  expect_message(na_sum(c(1:10, NA)), "Taking a sum with missing values equal to 0, be careful!")
 })
 
 test_that("na_sum fails with non-numerics", {