diff --git a/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodecHelper.java b/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodecHelper.java
index 5db7c6d..eccbddb 100644
--- a/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodecHelper.java
+++ b/core/common/src/main/java/org/onosproject/codec/impl/EncodeInstructionCodecHelper.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.codec.impl;
 
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.onlab.util.HexString;
 import org.onosproject.codec.CodecContext;
 import org.onosproject.net.OchSignal;
@@ -29,8 +30,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.fasterxml.jackson.databind.node.ObjectNode;
-
 /**
  * JSON encoding of Instructions.
  */
@@ -249,6 +248,12 @@
             case NOACTION:
                 break;
 
+            case GROUP:
+                final Instructions.GroupInstruction groupInstruction =
+                        (Instructions.GroupInstruction) instruction;
+                result.put(InstructionCodec.GROUP_ID, groupInstruction.groupId().toString());
+                break;
+
             case L0MODIFICATION:
                 encodeL0(result);
                 break;