diff --git a/src/main/java/org/ntlab/rdlworkbench/models/RDLSpecResource.java b/src/main/java/org/ntlab/rdlworkbench/models/RDLSpecResource.java
index c81e648..88f36d1 100644
--- a/src/main/java/org/ntlab/rdlworkbench/models/RDLSpecResource.java
+++ b/src/main/java/org/ntlab/rdlworkbench/models/RDLSpecResource.java
@@ -26,6 +26,12 @@
         this.valueType = valueType;
     }
 
+    public RDLSpecResource(String name, int order, ValueType valueType) {
+        super(name, order);
+        structuralType = StructuralType.primitive;
+        this.valueType = valueType;
+    }
+
     @Override
     public StructuralType getStructuralType() {
         return structuralType;