diff --git a/android/ScratchJr/app/src/.gitignore b/android/ScratchJr/app/src/.gitignore
index 5ef305a..bbbaa2b 100644
--- a/android/ScratchJr/app/src/.gitignore
+++ b/android/ScratchJr/app/src/.gitignore
@@ -1,2 +1,3 @@
 /official
+/arc
 /pbs