diff --git a/roles/copr/backend/files/provision/files/mock/custom-0-i386.cfg b/roles/copr/backend/files/provision/files/mock/custom-0-i386.cfg
index 1187c91cc0..4d909bccaf 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-0-i386.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-0-i386.cfg
@@ -1,7 +1,7 @@
 config_opts['root'] = 'custom-0-i386'
 config_opts['target_arch'] = 'i686'
 config_opts['legal_host_arches'] = ('i386', 'i586', 'i686', 'x86_64')
-config_opts['chroot_setup_cmd'] = 'install @buildsys-build'
+config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
diff --git a/roles/copr/backend/files/provision/files/mock/custom-0-ppc64le.cfg b/roles/copr/backend/files/provision/files/mock/custom-0-ppc64le.cfg
index 9632a3db97..2327ac9974 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-0-ppc64le.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-0-ppc64le.cfg
@@ -1,7 +1,7 @@
 config_opts['root'] = 'custom-0-ppc64le'
 config_opts['target_arch'] = 'ppc64le'
 config_opts['legal_host_arches'] = ('ppc64le',)
-config_opts['chroot_setup_cmd'] = 'install @buildsys-build'
+config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
diff --git a/roles/copr/backend/files/provision/files/mock/custom-0-x86_64.cfg b/roles/copr/backend/files/provision/files/mock/custom-0-x86_64.cfg
index edbd21e8bf..9935d4b38b 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-0-x86_64.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-0-x86_64.cfg
@@ -1,7 +1,7 @@
 config_opts['root'] = 'custom-0-x86_64'
 config_opts['target_arch'] = 'x86_64'
 config_opts['legal_host_arches'] = ('x86_64',)
-config_opts['chroot_setup_cmd'] = 'install @buildsys-build'
+config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
diff --git a/roles/copr/backend/files/provision/provision_builder_tasks.yml b/roles/copr/backend/files/provision/provision_builder_tasks.yml
index 96e6d0a12c..bd43f7491f 100644
--- a/roles/copr/backend/files/provision/provision_builder_tasks.yml
+++ b/roles/copr/backend/files/provision/provision_builder_tasks.yml
@@ -50,6 +50,9 @@
   template: src=files/mock/{{ item }} dest=/etc/mock
   with_items:
     - site-defaults.cfg
+    - custom-0-x86_64.cfg
+    - custom-0-i386.cfg
+    - custom-0-ppc64le.cfg
 
 # TODO: file globs or ansible escaping works strange, now using predefined file location
 #- name: "fix mock configs to use nearest mirror"