Index: skill.c
===================================================================
--- skill.c (revision 17067)
+++ skill.c (working copy)
@@ -13786,7 +13786,7 @@
 {
    struct status_change *sc = status_get_sc(bl);
    struct map_session_data *sd = BL_CAST(BL_PC,bl);
-   int fixed = skill_get_fixed_cast(skill_id, skill_lv), fixcast_r = 0, varcast_r = 0, i = 0;
+   int fixed = (skill_id >= 2001 && skill_id <= 2498)?skill_get_fixed_cast(skill_id, skill_lv):0, fixcast_r = 0, varcast_r = 0, i = 0; //[clydelion]
 
    if( time < 0 )
        return 0;