diff --git a/test/cpp/microbenchmarks/bm_fullstack_trickle.cc b/test/cpp/microbenchmarks/bm_fullstack_trickle.cc
index 702a14d14ea085be8d18c7d97df07cc71d1e7f7f..9f616fe152f82e5802d0d502c01ec56682965396 100644
--- a/test/cpp/microbenchmarks/bm_fullstack_trickle.cc
+++ b/test/cpp/microbenchmarks/bm_fullstack_trickle.cc
@@ -427,7 +427,7 @@ static void UnaryTrickleArgs(benchmark::internal::Benchmark* b) {
   const int svr_64M = 64 * 1024 * 1024;
   for (int bw = 64; bw <= 128 * 1024 * 1024; bw *= 16) {
     for (auto svr : {svr_256k, svr_4M, svr_64M}) {
-      for (auto cli: {cli_1024k, cli_32M}) {
+      for (auto cli : {cli_1024k, cli_32M}) {
         b->Args({cli, svr, bw});
       }
     }