diff --git a/.gitignore b/.gitignore
index aa466d926..92006f752 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,9 @@ bin/iBioSim.jar
 .settings/
 **/.project
 /.metadata/
+
+# intellij artefacts
+out
+*.iws
+*.ipr
+*.iml