diff --git a/src/store/index.js b/src/store/index.js
index 79685c64..f9029ea1 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -925,7 +925,7 @@ export const useMainStore = defineStore({
             let lineItems = [
                 ...(order.lineItems.supportingItems ?? []),
                 ...(order.lineItems.vaps ?? []),
-                ...(order.lineItems.glassParts)
+                ...(order.lineItems.glassParts ?? [])
             ];
             lineItems = getLineItemsFlattened(lineItems);
             lineItems = lineItems.map((lineItem) => ({