diff --git a/dexlib2/src/main/java/org/jf/dexlib2/Opcode.java b/dexlib2/src/main/java/org/jf/dexlib2/Opcode.java
index fee085d9..f3b9c189 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/Opcode.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/Opcode.java
@@ -343,6 +343,7 @@ public enum Opcode
             case 0x300:
                 return ARRAY_PAYLOAD;
             default:
+                // TODO: handle unknown opcodes (treat as nop)
                 return opcodesByValue[opcodeValue];
         }
     }