diff --git a/opentts-abc/opentts_abc/__init__.py b/opentts-abc/opentts_abc/__init__.py
index a425f98..d18dcfd 100644
--- a/opentts-abc/opentts_abc/__init__.py
+++ b/opentts-abc/opentts_abc/__init__.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # Copyright 2022 Mycroft AI Inc.
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/opentts-abc/opentts_abc/ssml.py b/opentts-abc/opentts_abc/ssml.py
index 7b502d8..db3cbe5 100644
--- a/opentts-abc/opentts_abc/ssml.py
+++ b/opentts-abc/opentts_abc/ssml.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # Copyright 2022 Mycroft AI Inc.
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/opentts-abc/setup.py b/opentts-abc/setup.py
index e0df764..374b70c 100644
--- a/opentts-abc/setup.py
+++ b/opentts-abc/setup.py
@@ -53,6 +53,7 @@ setup(
     packages=setuptools.find_packages(),
     package_data={"opentts_abc": ["VERSION", "py.typed"]},
     install_requires=requirements,
+    extras_require={':python_version<"3.9"': ["importlib_resources"]},
     classifiers=[
         "Development Status :: 3 - Alpha",
         "Intended Audience :: Developers",