diff --git a/chaincode/marbles02_private/go/marbles_chaincode_private.go b/chaincode/marbles02_private/go/marbles_chaincode_private.go
index 15b448eb41..40abc67b8f 100644
--- a/chaincode/marbles02_private/go/marbles_chaincode_private.go
+++ b/chaincode/marbles02_private/go/marbles_chaincode_private.go
@@ -8,19 +8,19 @@ SPDX-License-Identifier: Apache-2.0
 
 // ==== Invoke marbles, pass private data as base64 encoded bytes in transient map ====
 //
-// export MARBLE=$(echo -n "{\"name\":\"marble1\",\"color\":\"blue\",\"size\":35,\"owner\":\"tom\",\"price\":99}" | base64)
+// export MARBLE=$(echo -n "{\"name\":\"marble1\",\"color\":\"blue\",\"size\":35,\"owner\":\"tom\",\"price\":99}" | base64 | tr -d \\n)
 // peer chaincode invoke -C mychannel -n marblesp -c '{"Args":["initMarble"]}' --transient "{\"marble\":\"$MARBLE\"}"
 //
-// export MARBLE=$(echo -n "{\"name\":\"marble2\",\"color\":\"red\",\"size\":50,\"owner\":\"tom\",\"price\":102}" | base64)
+// export MARBLE=$(echo -n "{\"name\":\"marble2\",\"color\":\"red\",\"size\":50,\"owner\":\"tom\",\"price\":102}" | base64 | tr -d \\n)
 // peer chaincode invoke -C mychannel -n marblesp -c '{"Args":["initMarble"]}' --transient "{\"marble\":\"$MARBLE\"}"
 //
-// export MARBLE=$(echo -n "{\"name\":\"marble3\",\"color\":\"blue\",\"size\":70,\"owner\":\"tom\",\"price\":103}" | base64)
+// export MARBLE=$(echo -n "{\"name\":\"marble3\",\"color\":\"blue\",\"size\":70,\"owner\":\"tom\",\"price\":103}" | base64 | tr -d \\n)
 // peer chaincode invoke -C mychannel -n marblesp -c '{"Args":["initMarble"]}' --transient "{\"marble\":\"$MARBLE\"}"
 //
-// export MARBLE_OWNER=$(echo -n "{\"name\":\"marble2\",\"owner\":\"jerry\"}" | base64)
+// export MARBLE_OWNER=$(echo -n "{\"name\":\"marble2\",\"owner\":\"jerry\"}" | base64 | tr -d \\n)
 // peer chaincode invoke -C mychannel -n marblesp -c '{"Args":["transferMarble"]}' --transient "{\"marble_owner\":\"$MARBLE_OWNER\"}"
 //
-// export MARBLE_DELETE=$(echo -n "{\"name\":\"marble1\"}" | base64)
+// export MARBLE_DELETE=$(echo -n "{\"name\":\"marble1\"}" | base64 | tr -d \\n)
 // peer chaincode invoke -C mychannel -n marblesp -c '{"Args":["delete"]}' --transient "{\"marble_delete\":\"$MARBLE_DELETE\"}"
 
 // ==== Query marbles, since queries are not recorded on chain we don't need to hide private data in transient map ====