diff --git a/src/de/inetsoftware/jwebassembly/wasm/StructOperator.java b/src/de/inetsoftware/jwebassembly/wasm/StructOperator.java
index c17c9da..e20b680 100644
--- a/src/de/inetsoftware/jwebassembly/wasm/StructOperator.java
+++ b/src/de/inetsoftware/jwebassembly/wasm/StructOperator.java
@@ -26,4 +26,5 @@ public enum StructOperator {
     NEW_DEFAULT,
     GET,
     SET,
+    NULL,
 }
\ No newline at end of file