diff --git a/core/api/src/test/java/org/onosproject/net/flow/instructions/InstructionsTest.java b/core/api/src/test/java/org/onosproject/net/flow/instructions/InstructionsTest.java
index 8470654..d8b511c 100644
--- a/core/api/src/test/java/org/onosproject/net/flow/instructions/InstructionsTest.java
+++ b/core/api/src/test/java/org/onosproject/net/flow/instructions/InstructionsTest.java
@@ -94,6 +94,8 @@
         assertThatClassIsImmutable(L2ModificationInstruction.ModVlanIdInstruction.class);
         assertThatClassIsImmutable(L2ModificationInstruction.ModVlanPcpInstruction.class);
         assertThatClassIsImmutable(L3ModificationInstruction.ModIPInstruction.class);
+        assertThatClassIsImmutable(L2ModificationInstruction.ModMplsLabelInstruction.class);
+        assertThatClassIsImmutable(L2ModificationInstruction.PushHeaderInstructions.class);
     }
 
     //  DropInstruction