diff --git a/csharp/.gitignore b/csharp/.gitignore
index 8ba8849..d0d7ae0 100644
--- a/csharp/.gitignore
+++ b/csharp/.gitignore
@@ -29,3 +29,6 @@
 mono/*.dll
 lib/protoc.exe
 *.ncrunch*
+
+# Benchmark output
+BenchmarkDotNet.Artifacts/