diff --git a/module_build_service/builder/KojiModuleBuilder.py b/module_build_service/builder/KojiModuleBuilder.py
index 4bdcce5f..1776ffae 100644
--- a/module_build_service/builder/KojiModuleBuilder.py
+++ b/module_build_service/builder/KojiModuleBuilder.py
@@ -23,6 +23,7 @@
 #            Luboš Kocman <lkocman@redhat.com>
 
 
+import copy
 import logging
 import os
 import koji
@@ -947,14 +948,8 @@ chmod 644 %buildroot/etc/rpm/macros.zz-modules
             if taginfo['perm'] not in (perm_id, perm):  # check either id or the string
                 opts['perm'] = perm_id
 
-        opts['extra'] = {
-            'mock.package_manager': 'dnf',
-            # This is needed to include all the Koji builds (and therefore
-            # all the packages) from all inherited tags into this tag.
-            # See https://pagure.io/koji/issue/588 and
-            # https://pagure.io/fm-orchestrator/issue/660 for background.
-            'repo_include_all': True,
-        }
+        # Create deepcopy of conf dict, because we are going to change it later.
+        opts['extra'] = copy.deepcopy(conf.koji_tag_extra_opts)
 
         xmd = self.mmd.get_xmd()
         if "mbs_options" in xmd.keys() and "repo_include_all" in xmd["mbs_options"].keys():
diff --git a/module_build_service/config.py b/module_build_service/config.py
index c0aeabf1..361d5fd2 100644
--- a/module_build_service/config.py
+++ b/module_build_service/config.py
@@ -199,6 +199,21 @@ class Config(object):
             'type': list,
             'default': ['module', 'scrmod'],
             'desc': 'List of allowed koji tag prefixes.'},
+        'koji_tag_extra_opts': {
+            'type': dict,
+            'default': {
+                'mock.package_manager': 'dnf',
+                # This is needed to include all the Koji builds (and therefore
+                # all the packages) from all inherited tags into this tag.
+                # See https://pagure.io/koji/issue/588 and
+                # https://pagure.io/fm-orchestrator/issue/660 for background.
+                'repo_include_all': True,
+                # Has been requested by Fedora infra in
+                # https://pagure.io/fedora-infrastructure/issue/7620.
+                # Disables systemd-nspawn for chroot.
+                'mock.new_chroot': 0,
+            },
+            'desc': 'Extra options set for newly created Koji tags.'},
         'koji_target_delete_time': {
             'type': int,
             'default': 24 * 3600,
diff --git a/tests/test_builder/test_koji.py b/tests/test_builder/test_koji.py
index 6c73b90e..afc59c91 100644
--- a/tests/test_builder/test_koji.py
+++ b/tests/test_builder/test_koji.py
@@ -517,10 +517,12 @@ class TestKojiBuilder:
 
         expected_calls = [mock.call('module-foo', arches=expected_arches,
                                     extra={'mock.package_manager': 'dnf',
-                                           'repo_include_all': repo_include_all}),
+                                           'repo_include_all': repo_include_all,
+                                           'mock.new_chroot': 0}),
                           mock.call('module-foo-build', arches=expected_arches,
                                     extra={'mock.package_manager': 'dnf',
-                                           'repo_include_all': repo_include_all})]
+                                           'repo_include_all': repo_include_all,
+                                           'mock.new_chroot': 0})]
         assert session.editTag2.mock_calls == expected_calls
 
     @pytest.mark.parametrize('blocklist', [False, True])