diff --git a/Changelog-Trunk.txt b/Changelog-Trunk.txt
index 510131a436..0879372ac1 100644
--- a/Changelog-Trunk.txt
+++ b/Changelog-Trunk.txt
@@ -4,6 +4,8 @@ AS OF SVN REV. 5091, WE ARE NOW USING TRUNK.  ALL UNTESTED BUGFIXES/FEATURES GO
 IF YOU HAVE A WORKING AND TESTED BUGFIX PUT IT INTO STABLE AS WELL AS TRUNK.
 
 2006/07/11
+	* Fixed inverted check which was preventing you from buying more than 1
+	  from any stackable item.... [Skotlex]
 	* Should have fixed the crash in intif gm message... [Skotlex]
 	* Fixed GTB card only working while you had a status-change active.
 	  [Skotlex]
diff --git a/src/map/npc.c b/src/map/npc.c
index c5fd46d020..5a76ef11b6 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -1198,7 +1198,7 @@ int npc_buylist(struct map_session_data *sd,int n,unsigned short *item_list)
 		if (nd->u.shop_item[j].nameid==0)
 			return 3;
 		
-		if (itemdb_isstackable(nd->u.shop_item[j].nameid) && item_list[i*2] > 1)
+		if (!itemdb_isstackable(nd->u.shop_item[j].nameid) && item_list[i*2] > 1)
 		{	//Exploit? You can't buy more than 1 of equipment types o.O
 			ShowWarning("Player %s (%d:%d) sent a hexed packet trying to buy %d of nonstackable item %d!\n",
 				sd->status.name, sd->status.account_id, sd->status.char_id, item_list[i*2], nd->u.shop_item[j].nameid);