diff --git a/server/gameserver/mt/Buff.cc b/server/gameserver/mt/Buff.cc
index 4a598451..5556b23b 100644
--- a/server/gameserver/mt/Buff.cc
+++ b/server/gameserver/mt/Buff.cc
@@ -112,6 +112,23 @@ namespace mt
                 _duration_time = a8::XValue(duration_time()).GetDouble();
             }
         }
+        {
+            if (a8::lisp::Expr::MaybeExpr(buff_param1())) {
+                _buff_param1_expr = LispEnv::Instance()->CompileSkillNumberExpr(buff_param1());
+            }
+            if (a8::lisp::Expr::MaybeExpr(buff_param2())) {
+                _buff_param1_expr = LispEnv::Instance()->CompileSkillNumberExpr(buff_param2());
+            }
+            if (a8::lisp::Expr::MaybeExpr(buff_param3())) {
+                _buff_param1_expr = LispEnv::Instance()->CompileSkillNumberExpr(buff_param3());
+            }
+            if (a8::lisp::Expr::MaybeExpr(buff_param4())) {
+                _buff_param1_expr = LispEnv::Instance()->CompileSkillNumberExpr(buff_param4());
+            }
+            if (a8::lisp::Expr::MaybeExpr(buff_param5())) {
+                _buff_param1_expr = LispEnv::Instance()->CompileSkillNumberExpr(buff_param5());
+            }
+        }
         {
             std::vector<std::string> strings;
             a8::Split(post_remove_action(), strings, '|');