diff --git a/nova-client/src/main/java/com/woorea/openstack/nova/api/FlavorsResource.java b/nova-client/src/main/java/com/woorea/openstack/nova/api/FlavorsResource.java
index c3e2256e0..521eb3a72 100644
--- a/nova-client/src/main/java/com/woorea/openstack/nova/api/FlavorsResource.java
+++ b/nova-client/src/main/java/com/woorea/openstack/nova/api/FlavorsResource.java
@@ -7,7 +7,7 @@
 import com.woorea.openstack.base.client.OpenStackRequest;
 import com.woorea.openstack.nova.model.Flavor;
 import com.woorea.openstack.nova.model.Flavors;
-import com.woorea.openstack.nova.model.Metadata;
+import com.woorea.openstack.nova.model.ExtraSpecs;
 
 public class FlavorsResource {
 	
@@ -29,8 +29,8 @@ public Show show(String id) {
 		return new Show(id);
 	}
 	
-	public ShowMetadata showMetadata(String id) {
-		return new ShowMetadata(id);
+	public ShowExtraSpecs showExtraSpecs(String id) {
+		return new ShowExtraSpecs(id);
 	}
 
 	
@@ -65,10 +65,10 @@ public Show(String id) {
 
 	}
 	
-	public class ShowMetadata extends OpenStackRequest<Metadata> {
+	public class ShowExtraSpecs extends OpenStackRequest<ExtraSpecs> {
 		
-		public ShowMetadata(String id) {
-			super(CLIENT, HttpMethod.GET, new StringBuilder("/flavors/").append(id).append("/metadata").toString(), null, Metadata.class);
+		public ShowExtraSpecs(String id) {
+			super(CLIENT, HttpMethod.GET, new StringBuilder("/flavors/").append(id).append("/os-extra_specs").toString(), null, ExtraSpecs.class);
 		}
 
 	}
diff --git a/nova-model/src/main/java/com/woorea/openstack/nova/model/ExtraSpecs.java b/nova-model/src/main/java/com/woorea/openstack/nova/model/ExtraSpecs.java
new file mode 100644
index 000000000..168062221
--- /dev/null
+++ b/nova-model/src/main/java/com/woorea/openstack/nova/model/ExtraSpecs.java
@@ -0,0 +1,22 @@
+package com.woorea.openstack.nova.model;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.codehaus.jackson.annotate.JsonCreator;
+import org.codehaus.jackson.map.annotate.JsonRootName;
+
+@JsonRootName("extra_specs")
+public class ExtraSpecs extends HashMap<String, String> {
+	
+	@JsonCreator
+	public ExtraSpecs(Map<String, String> extraSpecs) {
+		super(extraSpecs);
+	}
+
+	@Override
+	public String toString() {
+		return "ExtraSpecs [Map entries=" + super.toString() + "]";
+	}
+
+}
diff --git a/pom.xml b/pom.xml
index 9e02cbe39..154b33852 100644
--- a/pom.xml
+++ b/pom.xml
@@ -145,4 +145,4 @@
             </plugin>
 		</plugins>
 	</build>
-</project>
\ No newline at end of file
+</project>