diff --git a/buildbot_nix/__init__.py b/buildbot_nix/__init__.py
index 3fd89cf..49f97f6 100644
--- a/buildbot_nix/__init__.py
+++ b/buildbot_nix/__init__.py
@@ -177,7 +177,7 @@ class BuildTrigger(steps.BuildStep):
         return sch
 
     def schedule_one(self, build_props: Properties, job):
-        project_name = build_props.getProperty('event.project')
+        project_name = build_props.getProperty("event.refUpdate.project") or build_props.getProperty("event.change.project")
         source = f"{project_name}-eval"
         attr = job.get("attr", "eval-error")
         name = f"buildbotJobs.{attr}"
@@ -371,8 +371,8 @@ class NixEvalCommand(buildstep.ShellMixin, steps.BuildStep):
         # run nix-eval-jobs --flake .#$FLAKE_TARGET_ATTRIBUTE_FOR_JOBS to generate the dict of stages
         cmd: remotecommand.RemoteCommand = yield self.makeRemoteShellCommand()
         build_props = self.build.getProperties()
-        project_name = build_props.getProperty('event.refUpdate.project')
-        assert project_name is not None, "`event.refUpdate.project` is not available on the build properties, unexpected build type!"
+        project_name = build_props.getProperty("event.refUpdate.project") or build_props.getProperty("event.change.project")
+        assert project_name is not None, "`event.refUpdate.project` or `event.change.project` is not available on the build properties, unexpected build type!"
 
         yield self.runCommand(cmd)