diff --git a/server/gameserver/ability.cc b/server/gameserver/ability.cc
index 7f23cba8..0aee0d42 100644
--- a/server/gameserver/ability.cc
+++ b/server/gameserver/ability.cc
@@ -43,6 +43,13 @@ static std::array<std::vector<std::shared_ptr<AttrAddition>>, kAstEnd> s_speed_r
      std::vector<std::shared_ptr<AttrAddition>>({})
     };
 
+static void ClearSpeedRateInList()
+{
+    for (auto& itr : s_speed_ratein_list) {
+        itr.clear();
+    }
+}
+
 static bool IsMulCalc(int attr_id)
 {
     switch (attr_id) {