diff --git a/src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java b/src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java
index 41cf9e5..d35a9e0 100644
--- a/src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java
+++ b/src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java
@@ -255,7 +255,7 @@ class JavaMethodWasmCodeBuilder extends WasmCodeBuilder {
                             case f64:
                                 addCallInstruction( new SyntheticMember( "de/inetsoftware/jwebassembly/module/NativeHelperCode", "dup_f64", "(D)DD" ), codePos );
                                 break OP;
-                            case anyref:
+                            case anyref_:
                                 addCallInstruction( new SyntheticMember( "de/inetsoftware/jwebassembly/module/NativeHelperCode", "dup_anyref", "(Ljava.lang.Object;)Ljava.lang.Object;Ljava.lang.Object;" ), codePos );
                                 break OP;
                         }
diff --git a/src/de/inetsoftware/jwebassembly/wasm/ValueType.java b/src/de/inetsoftware/jwebassembly/wasm/ValueType.java
index b79ce75..0953db1 100644
--- a/src/de/inetsoftware/jwebassembly/wasm/ValueType.java
+++ b/src/de/inetsoftware/jwebassembly/wasm/ValueType.java
@@ -24,13 +24,15 @@ public enum ValueType implements StorageType {
     f32(-0x03),
     f64(-0x04),
     anyfunc(-0x10),
-    anyref(-0x11),
+    anyref_(-0x11),
     except_ref(-0x12),
     func(-0x20),
     struct(-0x30),
     empty(-0x40), // empty block_type
     ;
 
+    public static final ValueType anyref = i64; //TODO remove if anyref is supported
+
     private final int code;
 
     /**