diff --git a/examples/service_envoy/BUILD b/examples/service_envoy/BUILD
index eacb35c2..58174bad 100644
--- a/examples/service_envoy/BUILD
+++ b/examples/service_envoy/BUILD
@@ -1,3 +1,5 @@
+licenses(["notice"])  # Apache 2
+
 exports_files([
     "http_connection_manager.pb",
     "listeners.pb",
diff --git a/tools/BUILD b/tools/BUILD
index 59ba741f..aad638c0 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -1,3 +1,5 @@
+licenses(["notice"])  # Apache 2
+
 py_binary(
     name = "generate_listeners",
     srcs = ["generate_listeners.py"],
diff --git a/tools/generate_listeners.pyc b/tools/generate_listeners.pyc
new file mode 100644
index 00000000..97e0b4da
Binary files /dev/null and b/tools/generate_listeners.pyc differ
diff --git a/tools/protodoc/BUILD b/tools/protodoc/BUILD
index 00ab7b5f..eed8f236 100644
--- a/tools/protodoc/BUILD
+++ b/tools/protodoc/BUILD
@@ -1,3 +1,5 @@
+licenses(["notice"])  # Apache 2
+
 py_binary(
     name = "protodoc",
     srcs = ["protodoc.py"],