diff --git a/src/map/itemdb.c b/src/map/itemdb.c
index 7f9fedb6b8..e25c50a404 100644
--- a/src/map/itemdb.c
+++ b/src/map/itemdb.c
@@ -616,12 +616,10 @@ static bool itemdb_read_itemtrade(char* str[], int columns, int current)
 	flag = atoi(str[1]);
 	gmlv = atoi(str[2]);
 
-	if( flag < 0 || flag > 256 )
-	{//Check range
+	if( flag < 0 || flag > 511 ) {//Check range
 		ShowWarning("itemdb_read_itemtrade: Invalid trading mask %d for item id %d.\n", flag, nameid);
 		return false;
 	}
-
 	if( gmlv < 1 )
 	{
 		ShowWarning("itemdb_read_itemtrade: Invalid override GM level %d for item id %d.\n", gmlv, nameid);