diff --git a/src/test/unit/analyze/mcmc/rank_normalization_test.cpp b/src/test/unit/analyze/mcmc/rank_normalization_test.cpp
index 0a7fdc06fb..f4776d3443 100644
--- a/src/test/unit/analyze/mcmc/rank_normalization_test.cpp
+++ b/src/test/unit/analyze/mcmc/rank_normalization_test.cpp
@@ -39,7 +39,7 @@ TEST_F(RankNormalization, test_min_max) {
   chains_theta(minRow, minCol) = 0.001;
 
   auto rank_norm_theta = stan::analyze::rank_transform(chains_theta);
-  
+
   Eigen::Index maxRowRankNorm, maxColRankNorm;
   Eigen::Index minRowRankNorm, minColRankNorm;
   max_val = rank_norm_theta.maxCoeff(&maxRowRankNorm, &maxColRankNorm);