diff --git a/models/actions/run.go b/models/actions/run.go
index a9c458c86d..5185eb28bd 100644
--- a/models/actions/run.go
+++ b/models/actions/run.go
@@ -153,7 +153,9 @@ func (run *ActionRun) LoadAttributes(ctx context.Context) error {
 
 	if run.TriggerUser == nil {
 		u, err := user_model.GetPossibleUserByID(ctx, run.TriggerUserID)
-		if err != nil {
+		if user_model.IsErrUserNotExist(err) {
+			u = user_model.NewGhostUser()
+		} else if err != nil {
 			return err
 		}
 		run.TriggerUser = u
diff --git a/models/actions/run_test.go b/models/actions/run_test.go
index 9a5eb99537..f8b2c9fb2d 100644
--- a/models/actions/run_test.go
+++ b/models/actions/run_test.go
@@ -19,9 +19,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestGetRunBefore(t *testing.T) {
-}
-
 func TestSetConcurrencyGroup(t *testing.T) {
 	run := ActionRun{}
 	run.SetConcurrencyGroup("abc123")
@@ -686,3 +683,12 @@ jobs:
 	assert.Zero(t, insertedJobs[1].TaskID)
 	assert.Equal(t, StatusWaiting, insertedJobs[1].Status)
 }
+
+func TestActionRunLoadAttributes(t *testing.T) {
+	run := &ActionRun{
+		RepoID:        10,
+		TriggerUserID: 1000,
+	}
+	require.NoError(t, run.LoadAttributes(t.Context()))
+	assert.Equal(t, "ghost", run.TriggerUser.LowerName)
+}