diff --git a/.gitignore b/.gitignore
index 8066bf1..befe478 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@ target
 .DS_STORE
 book
 Cargo.lock
+.idea
 
 # Created by https://www.toptal.com/developers/gitignore/api/node
 # Edit at https://www.toptal.com/developers/gitignore?templates=node