diff --git a/src/map/skill.c b/src/map/skill.c
index a889273351..79b2af1292 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -7478,7 +7478,7 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, in
 
 	case LG_SHIELDSPELL:
 		if( flag&1 ) {
-			int duration = /*(sd) ? sd->shieldmdef * 2000 :*/ 10000;
+			int duration = (sd) ? sd->shieldmdef * 2000 : 10000;
 			sc_start(bl,SC_SILENCE,100,skilllv,duration);
 		} else if( sd ) {
 			int opt = skilllv;