diff --git a/fdroidserver/build.py b/fdroidserver/build.py
index d441662b..206f5715 100644
--- a/fdroidserver/build.py
+++ b/fdroidserver/build.py
@@ -1277,8 +1277,7 @@ def main():
                     if m:
                         status_output['hostProcMeminfoMemTotal'] = m.group(1)
                         break
-        fdroid_path = os.path.realpath(os.path.join(os.path.dirname(__file__), '..'))
-        buildserver_config = os.path.join(fdroid_path, 'makebuildserver.config.py')
+        buildserver_config = 'builder/Vagrantfile'
         if os.path.isfile(buildserver_config) and os.access(buildserver_config, os.R_OK):
             with open(buildserver_config) as configfile:
                 for line in configfile:
diff --git a/tests/builder/Vagrantfile b/tests/builder/Vagrantfile
new file mode 100644
index 00000000..376a19c7
--- /dev/null
+++ b/tests/builder/Vagrantfile
@@ -0,0 +1,12 @@
+# generated file, do not change.
+# https://gitlab.com/fdroid/fdroid-bootstrap-buildserver/-/blob/c0762bf9398d0/provision.yml#L552
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "buildserver"
+  config.vm.synced_folder ".", "/vagrant", disabled: true
+
+  config.vm.provider :libvirt do |libvirt|
+    libvirt.cpus = 24
+    libvirt.memory = 30720
+  end
+end