diff --git a/xwords4/android/XWords4-bt/.gitignore b/xwords4/android/XWords4-bt/.gitignore
index 4fe67c227..90feb0709 100644
--- a/xwords4/android/XWords4-bt/.gitignore
+++ b/xwords4/android/XWords4-bt/.gitignore
@@ -3,4 +3,6 @@ local.properties
 bin
 gen
 proguard.cfg
+proguard-project.txt
 obj
+res/drawable*/*gen.png