diff --git a/benchmarks/Benchmark.cpp b/benchmarks/Benchmark.cpp
index 0eb779a..eea304f 100644
--- a/benchmarks/Benchmark.cpp
+++ b/benchmarks/Benchmark.cpp
@@ -44,8 +44,8 @@
   return list;
 }
 
-size_t Benchmark::MaxNameColumnWidth() {
-  size_t max = 20;
+int Benchmark::MaxNameColumnWidth() {
+  int max = 20;
   for (auto& benchmark : List()) {
     max = std::max(max, benchmark->NameColumnWidth());
   }