diff --git a/.gitignore b/.gitignore
index a7075090ba9566fb7bb05f6450be6f343430688c..725e305c9fc38d6a57157ea95e6b88ecdb7b7742 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 dev/run-g5kchecks/output/
 generators/run-g5kchecks/output/
 bundle
+.bundle