diff --git a/.gitignore b/.gitignore
index 8c3f9400544f9150b9934ff278325713ed96f59e..4f9e45e883e096d330107ae8bde1b248d63e5095 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 *.out
 *.backup
 TeX_*.toc
+*.ics