diff --git a/src/rtmilk/mirror.py b/src/rtmilk/mirror.py
index d06f014..b842605 100644
--- a/src/rtmilk/mirror.py
+++ b/src/rtmilk/mirror.py
@@ -40,22 +40,24 @@ async def _MirrorPropertyAsync(property_, value):
 def _MirrorTask(task, taskData):
 	_MirrorProperty(task.tags, taskData.tags)
 	try:
-		_MirrorProperty(task.startDate, taskData.startDate)
+		# Move the due date first because you're more likely to be moving both dates to be later
 		_MirrorProperty(task.dueDate, taskData.dueDate)
+		_MirrorProperty(task.startDate, taskData.startDate)
 	except RTMError:
-		_MirrorProperty(task.dueDate, taskData.dueDate)
 		_MirrorProperty(task.startDate, taskData.startDate)
+		_MirrorProperty(task.dueDate, taskData.dueDate)
 	if taskData.complete is not None:
 		_MirrorProperty(task.complete, taskData.complete)
 
 async def _MirrorTaskAsync(task, taskData):
 	await _MirrorPropertyAsync(task.tags, taskData.tags)
 	try:
-		await _MirrorPropertyAsync(task.startDate, taskData.startDate)
+		# Move the due date first because you're more likely to be moving both dates to be later
 		await _MirrorPropertyAsync(task.dueDate, taskData.dueDate)
+		await _MirrorPropertyAsync(task.startDate, taskData.startDate)
 	except RTMError:
-		await _MirrorPropertyAsync(task.dueDate, taskData.dueDate)
 		await _MirrorPropertyAsync(task.startDate, taskData.startDate)
+		await _MirrorPropertyAsync(task.dueDate, taskData.dueDate)
 	if taskData.complete is not None:
 		await _MirrorPropertyAsync(task.complete, taskData.complete)