diff --git a/examples/mare-with-rays-model2/.gitignore b/examples/mare-with-rays-model2/.gitignore
index 4957ab06..2632688e 100644
--- a/examples/mare-with-rays-model2/.gitignore
+++ b/examples/mare-with-rays-model2/.gitignore
@@ -2,3 +2,4 @@
 *.png
 *.out
 surface_*
+*.idea