diff --git a/client/src/app/routes/nova/OutputPage.tsx b/client/src/app/routes/nova/OutputPage.tsx
index 663d481fd..3933874b4 100644
--- a/client/src/app/routes/nova/OutputPage.tsx
+++ b/client/src/app/routes/nova/OutputPage.tsx
@@ -63,7 +63,7 @@ const OutputPage: React.FC<RouteComponentProps<OutputPageProps>> = ({
     const slotIndex = outputMetadataResponse?.included?.slot;
 
     let outputManaDetails: OutputManaDetails | null = null;
-    if (output && createdSlotIndex && protocolInfo) {
+    if (output && createdSlotIndex !== null && protocolInfo) {
         const untilSlotIndex = spentSlotIndex ? spentSlotIndex : latestConfirmedSlot > 0 ? latestConfirmedSlot : null;
         outputManaDetails = untilSlotIndex
             ? buildManaDetailsForOutput(output, createdSlotIndex, untilSlotIndex, protocolInfo.parameters, manaRewards?.rewards ?? null)
diff --git a/client/src/helpers/nova/hooks/useAddressBalance.ts b/client/src/helpers/nova/hooks/useAddressBalance.ts
index 56349efeb..2bbeb629f 100644
--- a/client/src/helpers/nova/hooks/useAddressBalance.ts
+++ b/client/src/helpers/nova/hooks/useAddressBalance.ts
@@ -67,7 +67,7 @@ export function useAddressBalance(
                         const createdSlotIndex = (included?.slot as number) ?? null;
                         const spentSlotIndex = (spent?.slot as number) ?? null;
 
-                        if (output && createdSlotIndex && protocolInfo) {
+                        if (output && createdSlotIndex !== null && protocolInfo) {
                             const untilSlotIndex = spentSlotIndex ? spentSlotIndex : latestConfirmedSlot > 0 ? latestConfirmedSlot : null;
                             const outputManaDetails = untilSlotIndex
                                 ? buildManaDetailsForOutput(