diff --git a/src/AppWrapper.h b/src/AppWrapper.h
index 5067fb5..7302460 100644
--- a/src/AppWrapper.h
+++ b/src/AppWrapper.h
@@ -1,3 +1,20 @@
+/*
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #include "App.h"
 #include <v8.h>
 #include "Utilities.h"
diff --git a/src/HttpRequestWrapper.h b/src/HttpRequestWrapper.h
index 5872ec8..53e5934 100644
--- a/src/HttpRequestWrapper.h
+++ b/src/HttpRequestWrapper.h
@@ -1,3 +1,20 @@
+/*
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #include "App.h"
 #include "Utilities.h"
 
diff --git a/src/HttpResponseWrapper.h b/src/HttpResponseWrapper.h
index 22a9c7a..2015fb0 100644
--- a/src/HttpResponseWrapper.h
+++ b/src/HttpResponseWrapper.h
@@ -1,3 +1,20 @@
+/*
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #include "App.h"
 #include "Utilities.h"
 
diff --git a/src/Utilities.h b/src/Utilities.h
index 152d8e9..6f7d3fd 100644
--- a/src/Utilities.h
+++ b/src/Utilities.h
@@ -1,3 +1,20 @@
+/*
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #ifndef ADDON_UTILITIES_H
 #define ADDON_UTILITIES_H
 
diff --git a/src/WebSocketWrapper.h b/src/WebSocketWrapper.h
index 0d20c2f..ac33acc 100644
--- a/src/WebSocketWrapper.h
+++ b/src/WebSocketWrapper.h
@@ -1,3 +1,20 @@
+/*
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #include "App.h"
 #include "Utilities.h"
 
diff --git a/src/addon.cpp b/src/addon.cpp
index 34ba665..0740592 100644
--- a/src/addon.cpp
+++ b/src/addon.cpp
@@ -1,5 +1,5 @@
 /*
- * Authored by Alex Hultman, 2018-2019.
+ * Authored by Alex Hultman, 2018-2020.
  * Intellectual property of third-party.
 
  * Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/src/host.cpp b/src/host.cpp
index dbc42e9..6e34604 100644
--- a/src/host.cpp
+++ b/src/host.cpp
@@ -1,5 +1,6 @@
 /*
- * Copyright 2018 Alex Hultman and contributors.
+ * Authored by Alex Hultman, 2018-2020.
+ * Intellectual property of third-party.
 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.