diff --git a/android/tutorial/proguard-rules.pro b/android/tutorial/proguard-rules.pro
index f1b424510..dcd99d3be 100644
--- a/android/tutorial/proguard-rules.pro
+++ b/android/tutorial/proguard-rules.pro
@@ -1,3 +1,10 @@
+#
+# Copyright (c) 2018-present, Facebook, Inc.
+#
+# This source code is licensed under the MIT license found in the LICENSE
+# file in the root directory of this source tree.
+#
+
 # Add project specific ProGuard rules here.
 # You can control the set of applied configuration files using the
 # proguardFiles setting in build.gradle.
diff --git a/static/electron-stubs.notjs b/static/electron-stubs.notjs
index aa3b23af9..f456c06e1 100644
--- a/static/electron-stubs.notjs
+++ b/static/electron-stubs.notjs
@@ -1,3 +1,10 @@
+/*
+ *  Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
 {
   remote: {
     process: {
diff --git a/static/graphiql/graphiql.css b/static/graphiql/graphiql.css
index 44df2b232..2e7135825 100644
--- a/static/graphiql/graphiql.css
+++ b/static/graphiql/graphiql.css
@@ -1,3 +1,11 @@
+/*
+ *  Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
+
 .graphiql-container,
 .graphiql-container button,
 .graphiql-container input {
diff --git a/website/static/css/custom.css b/website/static/css/custom.css
index 7cf21415a..1cbdde70f 100644
--- a/website/static/css/custom.css
+++ b/website/static/css/custom.css
@@ -1,4 +1,10 @@
-/* your custom css */
+/*
+ *  Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
 
 body,
 h1,
diff --git a/xplat/Flipper/Log.cpp b/xplat/Flipper/Log.cpp
index 58468cb29..ce3e8fecf 100644
--- a/xplat/Flipper/Log.cpp
+++ b/xplat/Flipper/Log.cpp
@@ -1,3 +1,9 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
 #include "Log.h"
 
 #ifdef __ANDROID__
diff --git a/xplat/Flipper/Log.h b/xplat/Flipper/Log.h
index ae8432f38..813227e4a 100644
--- a/xplat/Flipper/Log.h
+++ b/xplat/Flipper/Log.h
@@ -1,3 +1,9 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
 #pragma once
 
 #include <string>
diff --git a/xplat/FlipperTestLib/ConnectionContextStoreMock.h b/xplat/FlipperTestLib/ConnectionContextStoreMock.h
index 76938616b..f5cbfb323 100644
--- a/xplat/FlipperTestLib/ConnectionContextStoreMock.h
+++ b/xplat/FlipperTestLib/ConnectionContextStoreMock.h
@@ -1,3 +1,9 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
 #include <Flipper/ConnectionContextStore.h>
 
 namespace facebook {