diff --git a/phase4-bdew-client/src/main/java/com/helger/phase4/bdew/Phase4BDEWSender.java b/phase4-bdew-client/src/main/java/com/helger/phase4/bdew/Phase4BDEWSender.java
index 477f17c14..95c2370dd 100644
--- a/phase4-bdew-client/src/main/java/com/helger/phase4/bdew/Phase4BDEWSender.java
+++ b/phase4-bdew-client/src/main/java/com/helger/phase4/bdew/Phase4BDEWSender.java
@@ -95,6 +95,7 @@ protected AbstractBDEWUserMessageBuilder ()
         // Other crypt parameters are located in the PMode security part
         cryptParams ().setKeyIdentifierType (DEFAULT_KEY_IDENTIFIER_TYPE);
         cryptParams ().setKeyEncAlgorithm (ECryptoKeyEncryptionAlgorithm.ECDH_ES_KEYWRAP_AES_128);
+        cryptParams ().setEncryptSymmetricSessionKey (false);
 
         /**
          * Assumption: the BST "ValueType" attribute is set to