diff --git a/src/map/skill.c b/src/map/skill.c
index 74597ca0c11..f904869ed8f 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -13944,7 +13944,11 @@ static int skill_unit_onplace_timer(struct skill_unit *src, struct block_list *b
 			} else {
 				struct status_data *bst = status->get_base_status(bl);
 				nullpo_ret(bst);
-				sg->limit -= 1000 * bst->str/20;
+
+				int basestr = bst->str;
+				if (basestr > 130)
+					basestr = 130;
+				sg->limit -= 1000 * basestr / 20;
 				sc_start(ss, bl, SC_VACUUM_EXTREME, 100, sg->skill_lv, sg->limit);
 
 				if ( !map_flag_gvg(bl->m) && !map->list[bl->m].flag.battleground && !is_boss(bl) ) {