diff --git a/changelogs/fragments/2373-svr4pkg-fix-typeerror.yml b/changelogs/fragments/2373-svr4pkg-fix-typeerror.yml
new file mode 100644
index 0000000000..d0b3580889
--- /dev/null
+++ b/changelogs/fragments/2373-svr4pkg-fix-typeerror.yml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - svr4pkg - convert string to a bytes-like object to avoid ``TypeError`` with Python 3 (https://github.com/ansible-collections/community.general/issues/2373).
diff --git a/plugins/modules/packaging/os/svr4pkg.py b/plugins/modules/packaging/os/svr4pkg.py
index ea3cd7d468..aa7a5c2e52 100644
--- a/plugins/modules/packaging/os/svr4pkg.py
+++ b/plugins/modules/packaging/os/svr4pkg.py
@@ -121,7 +121,7 @@ def package_installed(module, name, category):
 
 def create_admin_file():
     (desc, filename) = tempfile.mkstemp(prefix='ansible_svr4pkg', text=True)
-    fullauto = '''
+    fullauto = b'''
 mail=
 instance=unique
 partial=nocheck