diff --git a/lib/opcodes.py b/lib/opcodes.py
index 49c6b8111a43ba2e4ad625d6d295be30029a7c37..f9d276048fb321572dcc30cef284ac9cf3030cce 100644
--- a/lib/opcodes.py
+++ b/lib/opcodes.py
@@ -1061,6 +1061,7 @@ class OpNodeQueryStorage(OpCode):
 
 class OpNodeModifyStorage(OpCode):
   """Modifies the properies of a storage unit"""
+  OP_DSC_FIELD = "node_name"
   OP_PARAMS = [
     _PNodeName,
     _PStorageType,