diff --git a/pr_106.patch b/pr_106.patch
new file mode 100644
index 0000000..af3d94d
--- /dev/null
+++ b/pr_106.patch
@@ -0,0 +1,19 @@
+commit 66a8d1bc88f99a05349099e1121ef1f57856cded
+Author: John Vandenberg <jayvdb@gmail.com>
+Date:   Sun Sep 13 10:45:51 2020 +0700
+
+    Remove test modules from runtime distribution
+
+Index: pypng-0.0.20/setup.py
+===================================================================
+--- pypng-0.0.20.orig/setup.py
++++ pypng-0.0.20/setup.py
+@@ -40,7 +40,7 @@ https://pypng.readthedocs.io/en/latest/
+     author_email='drj@pobox.com',
+     url='https://github.com/drj11/pypng',
+     package_dir={'': 'code'},
+-    py_modules=['png', 'test_png', 'pngsuite'],
++    py_modules=['png'],
+     scripts=[
+         "code/prichunkpng",
+         "code/priforgepng",
diff --git a/python-pypng.changes b/python-pypng.changes
index e5cf2d9..2037d04 100644
--- a/python-pypng.changes
+++ b/python-pypng.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Sep 11 11:22:36 UTC 2020 - John Vandenberg <jayvdb@gmail.com>
+
+- Remove test module from runtime package with pr_106.patch
+
 -------------------------------------------------------------------
 Wed May 20 07:26:40 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
 
diff --git a/python-pypng.spec b/python-pypng.spec
index 0de3a5d..870a41e 100644
--- a/python-pypng.spec
+++ b/python-pypng.spec
@@ -26,6 +26,7 @@ License:        MIT
 Group:          Development/Languages/Python
 URL:            https://github.com/drj11/pypng
 Source:         https://files.pythonhosted.org/packages/source/p/pypng/pypng-%{version}.tar.gz
+Patch0:         pr_106.patch
 BuildRequires:  %{python_module Cython}
 BuildRequires:  %{python_module numpy}
 BuildRequires:  %{python_module setuptools}
@@ -41,6 +42,7 @@ PyPNG allows PNG image files to be read and written using pure Python.
 
 %prep
 %setup -q -n pypng-%{version}
+%patch0 -p1
 sed -i -e '/^#!\//, 1d' code/png.py
 
 %build