diff --git a/fedora-docker.conf b/fedora-docker.conf
index ef377b5..1f73aea 100644
--- a/fedora-docker.conf
+++ b/fedora-docker.conf
@@ -219,7 +219,7 @@ image_build = {
                     'repo': [
                         'http://kojipkgs.fedoraproject.org/pub/fedora/linux/updates/25/$arch/',
                     ],
-                    'install_tree_from': '',
+                    'install_tree_from': 'http://kojipkgs.fedoraproject.org/pub/fedora/linux/releases/25/Everything/$arch/os/',
                     'subvariant': 'Docker_Base'
                     }
         }