diff --git a/src/mlpack/bindings/R/mlpack/tests/testthat/test-R_binding.R b/src/mlpack/bindings/R/mlpack/tests/testthat/test-R_binding.R
index ab55cef10e..081842e0f7 100644
--- a/src/mlpack/bindings/R/mlpack/tests/testthat/test-R_binding.R
+++ b/src/mlpack/bindings/R/mlpack/tests/testthat/test-R_binding.R
@@ -325,7 +325,7 @@ test_that("TestVerbose", {
 
 # Test that we get no output when verbose output is disabled.
 test_that("TestNotVerbose", {
-  expect_silent(output1 <- test_r_binding(4.0, 12, "hello",
+  expect_silent(test_r_binding(4.0, 12, "hello",
                                           build_model=TRUE))
 })