diff --git a/.gitignore b/.gitignore
index 4731d5ba99..2ec73a6fd8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,7 +71,3 @@ extensions/cronet/jniLibs/*
 !extensions/cronet/jniLibs/README.md
 extensions/cronet/libs/*
 !extensions/cronet/libs/README.md
-
-# Cast receiver
-cast_receiver_app/external-js
-cast_receiver_app/bazel-cast_receiver_app
diff --git a/.hgignore b/.hgignore
index 36d3268005..e8a0722d03 100644
--- a/.hgignore
+++ b/.hgignore
@@ -75,7 +75,3 @@ extensions/cronet/jniLibs/*
 !extensions/cronet/jniLibs/README.md
 extensions/cronet/libs/*
 !extensions/cronet/libs/README.md
-
-# Cast receiver
-cast_receiver_app/external-js
-cast_receiver_app/bazel-cast_receiver_app