diff --git a/.gitignore b/.gitignore
index 2453fb1c..867552bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -72,3 +72,5 @@ examples/global-lunar-bombardment/scale.ipynb
 
 python/ctem/ctem.egg-info/
 .idea/*
+
+*.i90