diff --git a/cloudesire-api-client/src/main/java/com/cloudesire/platform/apiclient/api/SubscriptionApi.java b/cloudesire-api-client/src/main/java/com/cloudesire/platform/apiclient/api/SubscriptionApi.java
index 975868186..44ebafc1c 100644
--- a/cloudesire-api-client/src/main/java/com/cloudesire/platform/apiclient/api/SubscriptionApi.java
+++ b/cloudesire-api-client/src/main/java/com/cloudesire/platform/apiclient/api/SubscriptionApi.java
@@ -8,7 +8,6 @@
 
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 public interface SubscriptionApi
 {
@@ -69,7 +68,7 @@ Call<Void> postOrderLines( @Path( "id" ) int id, @Body List<VendorOrderLineDTO>
     Call<Void> deleteMetadata( @Path( "id" ) int id, @Path( "key" ) String key );
 
     @GET( "subscription/metadata/keys" )
-    Call<Set<String>> getMetadataKeys();
+    Call<List<String>> getMetadataKeys();
 
     @Streaming
     @GET( "subscription" )