diff --git a/server/gameserver/buff.cc b/server/gameserver/buff.cc
index 401c8a86..f66c9945 100644
--- a/server/gameserver/buff.cc
+++ b/server/gameserver/buff.cc
@@ -1271,7 +1271,7 @@ void Buff::ProcCallFunc()
             if (weapon_meta) {
                 for (int i = 0; i < 6; ++i) {
                     a8::Vec2 bullet_dir = a8::Vec2::UP;
-                    bullet_dir.Rotate(60 * i);
+                    bullet_dir.Rotate(60 * i / 180.f);
                     a8::Vec2 bullet_born_pos = owner->GetPos() + bullet_dir * 20;
                     int bullet_uniid = owner->room->AllocUniid();
                     owner->room->frame_event.AddBullet