diff --git a/.gitignore b/.gitignore
index 0333da5a0f19c809954f62afe6effc0c05d8d8af..e5e57733ff7d79e337618b5913bf06f40544392e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@
 *.lib
 *.root
 tmp.*
+*.pkl