diff --git a/internal/server/handle_pdf.go b/internal/server/handle_pdf.go
index c9867fc..b72fcd5 100644
--- a/internal/server/handle_pdf.go
+++ b/internal/server/handle_pdf.go
@@ -27,7 +27,7 @@ func handleCreateInvoicePdf(bs *booking.Service, ps *pdf.PdfService, hc *config.
 		if err != nil {
 			return err
 		}
-		return c.Attachment("tmp.pdf", "tmp.pdf")
+		return c.Attachment("tmp.pdf", fmt.Sprintf("VFNI-%s.pdf", b.InvoiceNumber(hc)))
 	}
 }
 
@@ -65,6 +65,6 @@ func handleCreateReportPdf(bs *booking.Service, ps *pdf.PdfService) echo.Handler
 			return err
 		}
 
-		return c.Attachment("tmp.pdf", "tmp.pdf")
+		return c.Attachment("tmp.pdf", fmt.Sprintf("VF-%02d-report.pdf", month))
 	}
 }