diff --git a/samples/BenchmarkDotNet.Samples/IntroSummaryStyle.cs b/samples/BenchmarkDotNet.Samples/IntroSummaryStyle.cs
index e24fda60e4..6a9830be18 100644
--- a/samples/BenchmarkDotNet.Samples/IntroSummaryStyle.cs
+++ b/samples/BenchmarkDotNet.Samples/IntroSummaryStyle.cs
@@ -2,8 +2,8 @@
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Configs;
 using BenchmarkDotNet.Reports;
-using BenchmarkDotNet.Columns;
 using Perfolizer.Horology;
+using Perfolizer.Metrology;
 
 namespace BenchmarkDotNet.Samples
 {