diff --git a/.gitignore b/.gitignore
index 19aee7fa54..dc6fb1ed6e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -122,3 +122,4 @@ segv_*out
 /ArduCopter/scripts/
 /ArduPlane/scripts/
 /ArduSub/scripts/
+persistent.dat