diff --git a/.gitignore b/.gitignore
index acb007e4..041e454e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,4 @@ sim_mode_auto
 direwolf-pacsatsim-tmp.conf
 groundstation/direwolf-pacsat-tmp.conf
 tlm.bin
+doppler.txt