diff --git a/metadata.graphqls b/metadata.graphqls
index ea6a6f3..2107d0c 100644
--- a/metadata.graphqls
+++ b/metadata.graphqls
@@ -33,6 +33,7 @@ type ServiceInstance {
     name: String!
     attributes: [Attribute!]!
     language: Language!
+    instanceUUID: String!
 }
 
 type Attribute {