diff --git a/test/Serilog.PerformanceTests/xunit.runner.json b/test/Serilog.PerformanceTests/xunit.runner.json
new file mode 100644
index 000000000..42db7ef95
--- /dev/null
+++ b/test/Serilog.PerformanceTests/xunit.runner.json
@@ -0,0 +1,3 @@
+{
+  "shadowCopy": false
+}