diff --git a/.gitignore b/.gitignore
index a1c2a23..a98939a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,9 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+
+# project stuff
+*.iml
+target/**
+out/**
+.idea/**