diff --git a/template/transaction/transaction.templ b/template/transaction/transaction.templ
index 94370ca..b784120 100644
--- a/template/transaction/transaction.templ
+++ b/template/transaction/transaction.templ
@@ -30,7 +30,7 @@ templ Transaction(items templ.Component, filter types.TransactionItemsFilter, ac
 						if parent.ParentId == nil {
 							<optgroup label={ parent.Name }>
 								for _, child := range treasureChests {
-									if *child.ParentId == parent.Id {
+									if child.ParentId != nil && *child.ParentId == parent.Id {
 										<option
 											value={ child.Id.String() }
 											selected?={ filter.TreasureChestId == child.Id.String() }