diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 812f904193e8869bf0bd179d5dd36e42d51c35c8..09db62ba5786673d2029d8c6b6f96122daa878a1 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -28,3 +28,4 @@ config.mak.autogen
 *-flex.*
 *.pyc
 *.pyo
+.config-detected