diff --git a/types/options.d.ts b/types/options.d.ts
index 29cdec1..7e35cb5 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -79,6 +79,7 @@ interface VueApolloSubscribeToMoreOptions extends SubscribeToMoreOptions {
 
 interface VueApolloSubscriptionDefinition extends SubscriptionOptions {
   variables?: QueryVariables
+  client?: string
 }
 
 export type VueApolloSubscriptionProperty =
diff --git a/types/test/App.ts b/types/test/App.ts
index c02d38f..068f3af 100644
--- a/types/test/App.ts
+++ b/types/test/App.ts
@@ -148,7 +148,8 @@ export const hey = Vue.extend({
           return {
             foo: this.meow
           }
-        }
+        },
+        client: 'foo'
       }
     }
   },