diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicy.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicy.java
index 284e39c..27d4eb2 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicy.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicy.java
@@ -23,6 +23,8 @@
 
 package org.onap.policy.models.tosca.authorative.concepts;
 
+import com.google.gson.annotations.SerializedName;
+import io.swagger.annotations.ApiModelProperty;
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -44,6 +46,8 @@
 public class ToscaPolicy extends ToscaEntity implements Comparable<ToscaPolicy> {
     private String type;
 
+    @ApiModelProperty(name = "type_version")
+    @SerializedName("type_version")
     private String typeVersion;
 
     private Map<String, Object> properties;