player can only sell cargo on bases that allow it, trademenu layout updates

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/inventory.cc b/src/core/inventory.cc
index 8f8c41a..03cd21e 100644
--- a/src/core/inventory.cc
+++ b/src/core/inventory.cc
@@ -65,10 +65,10 @@ void Inventory::remove(Item *item)
 	}
 }
 
-Item *Inventory::find(const Info *info)
+Item *Inventory::find(const Info *info) const
 {
 	// sarch the inventory for a specified item type
-	for (Items::iterator it = inventory_items.begin(); it != inventory_items.end(); it++) {
+	for (Items::const_iterator it = inventory_items.begin(); it != inventory_items.end(); it++) {
 		Item *item = (*it);
 		if (item->info() == info) {
 			return item;