diff --git a/bddtests/peer_basic.feature b/bddtests/peer_basic.feature
index 80ed9f548ec..2d88bf93575 100644
--- a/bddtests/peer_basic.feature
+++ b/bddtests/peer_basic.feature
@@ -349,8 +349,6 @@ Feature: Network of Peers
 
 #    @doNotDecompose
 #    @wip
-#    sha256 = '53a54f606b9cc14ae2825cc50736b183cf8d6fd0131b9d3176997efcf77d775f'
-#             calculated using all the args
 	Scenario: chaincode map single peer content generated ID
 	    Given we compose "docker-compose-1.yml"
 	    When requesting "/chain" from "vp0"
@@ -366,7 +364,7 @@ Feature: Network of Peers
             |   a   | 10 |
 	    Then I should have received a transactionID
 	    Then I wait up to "25" seconds for transaction to be committed to all peers
-	    Then I check the transaction ID if it is "a97267efe0391a5c0be28f79e8cb7f841aca1b952f028ec796b61c92aef6936c"
+	    Then I check the transaction ID if it is "73b88d92d86502eb66288f84fafae848fed0d21790f2ef1475850f4b635c47f0"
 
     Scenario: chaincode example 01 single peer rejection message
 	    Given we compose "docker-compose-1-exp.yml"
diff --git a/core/devops.go b/core/devops.go
index 3b65c01ddbe..497f9a44c58 100644
--- a/core/devops.go
+++ b/core/devops.go
@@ -215,7 +215,7 @@ func (d *Devops) invokeOrQuery(ctx context.Context, chaincodeInvocationSpec *pb.
 	var generr error
 	if invoke {
 		if customIDgenAlg != "" {
-			ctorbytes, merr := proto.Marshal(chaincodeInvocationSpec.ChaincodeSpec.CtorMsg)
+			ctorbytes, merr := asn1.Marshal(*chaincodeInvocationSpec.ChaincodeSpec.CtorMsg)
 			if merr != nil {
 				return nil, fmt.Errorf("Error marshalling constructor: %s", merr)
 			}
@@ -456,7 +456,7 @@ func (d *Devops) EXP_ExecuteWithBinding(ctx context.Context, executeWithBinding
 			return &pb.Response{Status: pb.Response_FAILURE, Msg: []byte(err.Error())}, nil
 		}
 
-		ctorbytes, merr := proto.Marshal(executeWithBinding.ChaincodeInvocationSpec.ChaincodeSpec.CtorMsg)
+		ctorbytes, merr := asn1.Marshal(*executeWithBinding.ChaincodeInvocationSpec.ChaincodeSpec.CtorMsg)
 		if merr != nil {
 			return nil, fmt.Errorf("Error marshalling constructor: %s", err)
 		}