diff --git a/roles/copr/backend/files/provision/files/mock/custom-1-i386.cfg b/roles/copr/backend/files/provision/files/mock/custom-1-i386.cfg
index e87c74f052..bccbdc9beb 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-1-i386.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-1-i386.cfg
@@ -5,7 +5,7 @@ config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
-config_opts['dnf.conf'] = """
+config_opts['yum.conf'] = """
 [main]
 keepcache=1
 debuglevel=2
diff --git a/roles/copr/backend/files/provision/files/mock/custom-1-ppc64le.cfg b/roles/copr/backend/files/provision/files/mock/custom-1-ppc64le.cfg
index 2ba2112d8b..8742102d82 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-1-ppc64le.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-1-ppc64le.cfg
@@ -5,7 +5,7 @@ config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
-config_opts['dnf.conf'] = """
+config_opts['yum.conf'] = """
 [main]
 keepcache=1
 debuglevel=2
diff --git a/roles/copr/backend/files/provision/files/mock/custom-1-x86_64.cfg b/roles/copr/backend/files/provision/files/mock/custom-1-x86_64.cfg
index 913bfde47d..43554b106d 100644
--- a/roles/copr/backend/files/provision/files/mock/custom-1-x86_64.cfg
+++ b/roles/copr/backend/files/provision/files/mock/custom-1-x86_64.cfg
@@ -5,7 +5,7 @@ config_opts['chroot_setup_cmd'] = ''
 config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
 config_opts['package_manager'] = 'dnf'
 
-config_opts['dnf.conf'] = """
+config_opts['yum.conf'] = """
 [main]
 keepcache=1
 debuglevel=2