diff --git a/src/mlpack/tests/main_tests/preprocess_split_test.cpp b/src/mlpack/tests/main_tests/preprocess_split_test.cpp
index 12ed84af10..16dc039157 100644
--- a/src/mlpack/tests/main_tests/preprocess_split_test.cpp
+++ b/src/mlpack/tests/main_tests/preprocess_split_test.cpp
@@ -343,10 +343,6 @@ TEST_CASE_METHOD(
   if (!data::Load("vc2_labels.txt", labels))
     FAIL("Unable to load label dataset vc2_labels.txt!");
 
-  // Store size of input dataset.
-  int inputSize = inputData.n_cols;
-  int labelSize = labels.n_cols;
-
   // Input custom data points and labels.
   SetInputParam("input", std::move(inputData));
   SetInputParam("input_labels", std::move(labels));