diff --git a/server/gameserver/buff.cc b/server/gameserver/buff.cc
index 568e2bb4..39f90e69 100644
--- a/server/gameserver/buff.cc
+++ b/server/gameserver/buff.cc
@@ -343,7 +343,9 @@ void Buff::ProcSputteringFunc(Bullet* bullet)
                              (
                               [p] (const a8::Args* args)
                               {
-                                  p->Update(50);
+                                  if (!p->IsDone()) {
+                                      p->Update(50);
+                                  }
                               }));
     }