diff --git a/src/PdfCreator.ts b/src/PdfCreator.ts
index f45f62c..e3446ce 100644
--- a/src/PdfCreator.ts
+++ b/src/PdfCreator.ts
@@ -151,7 +151,7 @@ export class PdfCreator {
      * @param cards The runner cars you want to generate the cards for.
      * @param locale The locale used for the cards (default:en)
      */
-    public async generateRunnerCards(cards: RunnerCard[], locale: string = "en", codeformat: string = config.codeformat): Promise<Buffer> {
+    public async generateRunnerCards(cards: RunnerCard[], locale: string = "en", codeformat: string = config.codeformat_cards): Promise<Buffer> {
         if (cards.length > 10) {
             let pdf_promises = new Array<Promise<Buffer>>();
             let i, j;
diff --git a/src/config.ts b/src/config.ts
index 7717a30..bff9c82 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -9,7 +9,8 @@ export const config = {
     eventname: process.env.EVENT_NAME || "Please set the event name",
     currency_symbol: process.env.CURRENCY_SYMBOL || "€",
     sponsoring_receipt_minimum_amount: process.env.SPONSORING_RECEIPT_MINIMUM_AMOUNT || "10",
-    codeformat: process.env.CODEFORMAT || "qrcode",
+    codeformat: process.env.CODEFORMAT || "code39",
+    codeformat_cards: process.env.CODEFORMAT_CARDS || process.env.CODEFORMAT || "code39",
     sponor_logos: getSponsorLogos(),
     api_key: getApiKey(),
     disclaimer_text: process.env.DISCLAIMER_TEXT || "",