diff --git a/src/mlpack/tests/cf_test.cpp b/src/mlpack/tests/cf_test.cpp
index 245bd60199..bf206028ad 100644
--- a/src/mlpack/tests/cf_test.cpp
+++ b/src/mlpack/tests/cf_test.cpp
@@ -1096,9 +1096,6 @@ BOOST_AUTO_TEST_CASE(CFPredictSimilarityInterpolation)
  */
 BOOST_AUTO_TEST_CASE(CFPredictRegressionInterpolation)
 {
-  // The small Grouplens dataset we use is very sparse.
-  // RegressionInterpolation doesn't generalize well when the data
-  // is very sparse. Thus we set a very high rmse bound here.
   CFPredict<RegSVDPolicy,
             OverallMeanNormalization,
             EuclideanSearch,