diff --git a/xwords4/android/.gitignore b/xwords4/android/.gitignore
index 0b45f97ae..717c4d20d 100644
--- a/xwords4/android/.gitignore
+++ b/xwords4/android/.gitignore
@@ -2,3 +2,7 @@
 /modules
 XWords4-gcm/
 /.gradle
+**.iml
+local.properties
+.idea
+