diff --git a/.gitignore b/.gitignore
index d816087..52372e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,6 +37,7 @@ hs_err_pid*
 
 # IntelliJ
 /out/
+*.iml
 
 # mpeltonen/sbt-idea plugin
 .idea_modules/