diff --git a/backend/src/receipt-import/receipt-import.service.ts b/backend/src/receipt-import/receipt-import.service.ts
index 2dea64a7..207704ce 100644
--- a/backend/src/receipt-import/receipt-import.service.ts
+++ b/backend/src/receipt-import/receipt-import.service.ts
@@ -257,7 +257,7 @@ export class ReceiptImportService {
           item.matchedProductName,
           item.suggestedProductName,
         ]
-          .filter((v): v is string => typeof v === 'string' && v.trim().isNotEmpty)
+          .filter((v): v is string => typeof v === 'string' && v.trim().length > 0)
           .join(' ');
 
         const byRule = this.ruleBasedCategorySuggestion(signalText || item.rawName, categories);