diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 812f904193e88..09db62ba57866 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -28,3 +28,4 @@ config.mak.autogen
 *-flex.*
 *.pyc
 *.pyo
+.config-detected