diff --git a/zuul/driver/github/githubmodel.py b/zuul/driver/github/githubmodel.py
index 9b9295225f..433141ec16 100644
--- a/zuul/driver/github/githubmodel.py
+++ b/zuul/driver/github/githubmodel.py
@@ -74,7 +74,9 @@ class GithubTriggerEvent(TriggerEvent):
         self.unlabel = None
         self.action = None
         self.delivery = None
-        self.check_runs = None
+        self.check_run = None
+        self.status = None
+        self.commits = []
 
     def isPatchsetCreated(self):
         if self.type == 'pull_request':
@@ -95,8 +97,8 @@ class GithubTriggerEvent(TriggerEvent):
             r.append('%s,%s' % (self.change_number, self.patch_number))
         if self.delivery:
             r.append('delivery: %s' % self.delivery)
-        if self.check_runs:
-            r.append('check_runs: %s' % self.check_runs)
+        if self.check_run:
+            r.append('check_run: %s' % self.check_run)
         return ' '.join(r)
 
 
diff --git a/zuul/driver/gitlab/gitlabmodel.py b/zuul/driver/gitlab/gitlabmodel.py
index 36c48a8390..fdf6de0424 100644
--- a/zuul/driver/gitlab/gitlabmodel.py
+++ b/zuul/driver/gitlab/gitlabmodel.py
@@ -64,6 +64,7 @@ class GitlabTriggerEvent(TriggerEvent):
         self.action = None
         self.labels = []
         self.change_number = None
+        self.tag = None
 
     def _repr(self):
         r = [super(GitlabTriggerEvent, self)._repr()]
diff --git a/zuul/driver/pagure/paguremodel.py b/zuul/driver/pagure/paguremodel.py
index ebcbb11b7f..93a0866da8 100644
--- a/zuul/driver/pagure/paguremodel.py
+++ b/zuul/driver/pagure/paguremodel.py
@@ -69,6 +69,7 @@ class PagureTriggerEvent(TriggerEvent):
         self.action = None
         self.status = None
         self.tags = []
+        self.tag = None
 
     def _repr(self):
         r = [super(PagureTriggerEvent, self)._repr()]
diff --git a/zuul/model.py b/zuul/model.py
index bce090a47d..0771ff1695 100644
--- a/zuul/model.py
+++ b/zuul/model.py
@@ -3839,6 +3839,7 @@ class TriggerEvent(object):
         # For logging
         self.zuul_event_id = None
         self.timestamp = None
+        self.arrived_at_scheduler_timestamp = None
 
     @property
     def canonical_project_name(self):