diff --git a/pkg/data/items.go b/pkg/data/items.go
index 925b1f6..bc195b2 100644
--- a/pkg/data/items.go
+++ b/pkg/data/items.go
@@ -24,7 +24,7 @@ func (i Inventory) isMatchOwner(it Item) bool {
 	}
 
 	if it.Location.LocationType == item.LocationMercenary {
-		return it.Owner == i.MercID
+		return i.MercID != 0 && it.Owner == i.MercID
 	}
 	return it.Owner == i.PlayerID
 }