diff --git a/src/main/java/app/coronawarn/quicktest/service/DccService.java b/src/main/java/app/coronawarn/quicktest/service/DccService.java
index 3d379bae..3c5f1916 100644
--- a/src/main/java/app/coronawarn/quicktest/service/DccService.java
+++ b/src/main/java/app/coronawarn/quicktest/service/DccService.java
@@ -78,7 +78,7 @@ public void collectPublicKeys() {
                     log.debug("got public key for {} testid", dccPublicKey.getTestId());
                     DgcData dgcData = genDcc(quickTest, dccPublicKey.getPublicKey(), dccPublicKey.getDcci());
                     DccUploadData dccUploadData = new DccUploadData();
-                    dccUploadData.setDccHash(Base64.getEncoder().encodeToString(dgcData.getHash()));
+                    dccUploadData.setDccHash(Hex.toHexString(dgcData.getHash()));
                     dccUploadData.setDataEncryptionKey(Base64.getEncoder().encodeToString(dgcData.getDek()));
                     dccUploadData.setEncryptedDcc(Base64.getEncoder().encodeToString(dgcData.getDataEncrypted()));
                     try {
diff --git a/src/test/java/app/coronawarn/quicktest/service/DccServiceTest.java b/src/test/java/app/coronawarn/quicktest/service/DccServiceTest.java
index 1fd5093d..24fc6000 100644
--- a/src/test/java/app/coronawarn/quicktest/service/DccServiceTest.java
+++ b/src/test/java/app/coronawarn/quicktest/service/DccServiceTest.java
@@ -10,6 +10,7 @@
 import app.coronawarn.quicktest.model.Sex;
 import app.coronawarn.quicktest.repository.QuickTestArchiveRepository;
 import app.coronawarn.quicktest.repository.QuickTestRepository;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import eu.europa.ec.dgc.DgciGenerator;
 import java.nio.charset.StandardCharsets;
 import java.security.KeyPair;
@@ -113,6 +114,9 @@ void dccSignDcc() throws Exception {
         quickTest = quickTestRepository.findById(quickTest.getHashedGuid()).get();
         assertNotNull(quickTest.getDccSignData());
         assertEquals(DccStatus.pendingSignature, quickTest.getDccStatus());
+        ObjectMapper objectMapper = new ObjectMapper();
+        System.out.println("\n### upload data ###\n"+quickTest.getDccSignData());
+
 
         dccService.uploadDccData();