diff --git a/src/Core/Resource/Script/IProperty.cpp b/src/Core/Resource/Script/IProperty.cpp
index c73fd152..0fca29de 100644
--- a/src/Core/Resource/Script/IProperty.cpp
+++ b/src/Core/Resource/Script/IProperty.cpp
@@ -94,6 +94,12 @@ bool IProperty::MatchesDefault()
     else return pkValue->Matches(pkDefault);
 }
 
+// ************ TAssetProperty ************
+TAssetProperty::TAssetProperty(IPropertyTemplate *pTemp, CScriptObject *pInstance, CPropertyStruct *pParent)
+    : TTypedProperty(pTemp, pInstance, pParent, CAssetID::InvalidID( pTemp->Game() ))
+{
+}
+
 // ************ CPropertyStruct ************
 void CPropertyStruct::Copy(const IProperty *pkProp)
 {
diff --git a/src/Core/Resource/Script/IProperty.h b/src/Core/Resource/Script/IProperty.h
index 2a5831d4..1756d726 100644
--- a/src/Core/Resource/Script/IProperty.h
+++ b/src/Core/Resource/Script/IProperty.h
@@ -150,7 +150,10 @@ public:
 class TAssetProperty : public TTypedProperty<CAssetID, eAssetProperty, CAssetValue>
 {
 public:
-    IMPLEMENT_PROPERTY_CTORS(TAssetProperty, CAssetID)
+    TAssetProperty(IPropertyTemplate *pTemp, CScriptObject *pInstance, CPropertyStruct *pParent); // Can't be in the header because needs to check the template to set the correct ID length
+    TAssetProperty(IPropertyTemplate *pTemp, CScriptObject *pInstance, CPropertyStruct *pParent, CAssetID v)
+        : TTypedProperty(pTemp, pInstance, pParent, v) {}
+
     IMPLEMENT_PROPERTY_CLONE(TAssetProperty)
     virtual bool MatchesDefault()   { return !Get().IsValid(); }
     virtual bool ShouldCook()       { return true; }