diff --git a/.changelog/6634.txt b/.changelog/6634.txt
new file mode 100644
index 00000000000..45f0c353950
--- /dev/null
+++ b/.changelog/6634.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+storagetransfer: fixed a crash in `google_storagetransfer_job` refreshes when `transfer_schedule` was empty
+```
diff --git a/google/resource_storage_transfer_job.go b/google/resource_storage_transfer_job.go
index 4dd7116d784..8ce77ec4fa3 100644
--- a/google/resource_storage_transfer_job.go
+++ b/google/resource_storage_transfer_job.go
@@ -839,7 +839,7 @@ func expandTransferSchedules(transferSchedules []interface{}) *storagetransfer.S
 }
 
 func flattenTransferSchedule(transferSchedule *storagetransfer.Schedule) []map[string]interface{} {
-	if reflect.DeepEqual(transferSchedule, &storagetransfer.Schedule{}) {
+	if transferSchedule == nil || reflect.DeepEqual(transferSchedule, &storagetransfer.Schedule{}) {
 		return nil
 	}