diff --git a/silhouette/app/com/mohiva/play/silhouette/impl/providers/SocialStateProvider.scala b/silhouette/app/com/mohiva/play/silhouette/impl/providers/SocialStateProvider.scala
index dc2efd7f4..cfc7fb0c1 100644
--- a/silhouette/app/com/mohiva/play/silhouette/impl/providers/SocialStateProvider.scala
+++ b/silhouette/app/com/mohiva/play/silhouette/impl/providers/SocialStateProvider.scala
@@ -246,7 +246,7 @@ class DefaultSocialStateHandler(val handlers: Set[SocialStateItemHandler], cooki
    * @return The serialized state as string.
    */
   override def serialize(state: SocialState): String = {
-    cookieSigner.sign(state.items.flatMap(i => handlers.flatMap(h => h.canHandle(i).map(h.serialize))).mkString("."))
+    cookieSigner.sign(state.items.flatMap(i => handlers.flatMap(h => h.canHandle(i).map(h.serialize)).map(_.asString)).mkString("."))
   }
 
   /**
diff --git a/silhouette/test/com/mohiva/play/silhouette/impl/providers/DefaultSocialStateHandlerSpec.scala b/silhouette/test/com/mohiva/play/silhouette/impl/providers/DefaultSocialStateHandlerSpec.scala
index edac5f507..0603ab3ed 100644
--- a/silhouette/test/com/mohiva/play/silhouette/impl/providers/DefaultSocialStateHandlerSpec.scala
+++ b/silhouette/test/com/mohiva/play/silhouette/impl/providers/DefaultSocialStateHandlerSpec.scala
@@ -64,7 +64,7 @@ class DefaultSocialStateHandlerSpec extends PlaySpecification with Mockito with
       Publishable.itemHandler.canHandle(Publishable.item) returns Some(Publishable.item)
       Publishable.itemHandler.serialize(Publishable.item) returns Publishable.structure
 
-      stateHandler.serialize(state) must be equalTo s"${Default.structure}.${Publishable.structure}"
+      stateHandler.serialize(state) must be equalTo s"${Default.structure.asString}.${Publishable.structure.asString}"
     }
   }