diff --git a/board/models.py b/board/models.py
index 5fa5968..74f00ba 100644
--- a/board/models.py
+++ b/board/models.py
@@ -204,6 +204,7 @@ def post_created(sender, instance, created, **kwargs):
                 instance.bump
                 and instance.op.bump
                 and instance.op.replies.count() < instance.board.autosink
+                and not instance.op.sticky
             ):
                 instance.op.last_bump = timezone.now()
                 instance.op.save()