diff --git a/cyclonedx/builder/__init__.py b/cyclonedx/builder/__init__.py
index 9342de00..ec68e667 100644
--- a/cyclonedx/builder/__init__.py
+++ b/cyclonedx/builder/__init__.py
@@ -1,3 +1,5 @@
+# This file is part of CycloneDX Python Library
+#
 # 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
diff --git a/cyclonedx/builder/this.py b/cyclonedx/builder/this.py
index 3c801835..8f81a8ff 100644
--- a/cyclonedx/builder/this.py
+++ b/cyclonedx/builder/this.py
@@ -1,3 +1,5 @@
+# This file is part of CycloneDX Python Library
+#
 # 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
diff --git a/cyclonedx/model/tool.py b/cyclonedx/model/tool.py
index e9749e8e..05c9d2d5 100644
--- a/cyclonedx/model/tool.py
+++ b/cyclonedx/model/tool.py
@@ -1,3 +1,5 @@
+# This file is part of CycloneDX Python Library
+#
 # 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
diff --git a/tests/test_builder_this.py b/tests/test_builder_this.py
index 5af3db1b..2e56b317 100644
--- a/tests/test_builder_this.py
+++ b/tests/test_builder_this.py
@@ -1,4 +1,4 @@
-# This file is part of CycloneDX Python Lib
+# This file is part of CycloneDX Python Library
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_model_tool.py b/tests/test_model_tool.py
index b0b87c0b..b541e64a 100644
--- a/tests/test_model_tool.py
+++ b/tests/test_model_tool.py
@@ -1,4 +1,4 @@
-# This file is part of CycloneDX Python Lib
+# This file is part of CycloneDX Python Library
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_model_tool_repository.py b/tests/test_model_tool_repository.py
index 4588fbe4..b090e647 100644
--- a/tests/test_model_tool_repository.py
+++ b/tests/test_model_tool_repository.py
@@ -1,4 +1,4 @@
-# This file is part of CycloneDX Python Lib
+# This file is part of CycloneDX Python Library
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.