diff --git a/sky/services/firebase/ios/firebase_impl.h b/sky/services/firebase/ios/firebase_impl.h
index ed8b280586a..c733bb915f1 100644
--- a/sky/services/firebase/ios/firebase_impl.h
+++ b/sky/services/firebase/ios/firebase_impl.h
@@ -35,13 +35,13 @@ class FirebaseImpl : public ::firebase::Firebase {
   void AddChildEventListener(
     ::firebase::ChildEventListenerPtr listener) override;
   void ObserveSingleEventOfType(
-      ::firebase::EventType eventType,
-      const ObserveSingleEventOfTypeCallback& callback) override;
+    ::firebase::EventType eventType,
+    const ObserveSingleEventOfTypeCallback& callback) override;
   void AuthWithOAuthToken(
     const mojo::String& provider,
     const mojo::String& credentials,
     const AuthWithOAuthTokenCallback& callback) override;
-  void FirebaseImpl::SetValue(const mojo::String& url);
+  void SetValue(const mojo::String& jsonValue);
 
  private:
   mojo::StrongBinding<::firebase::Firebase> binding_;
diff --git a/sky/services/firebase/ios/firebase_impl.mm b/sky/services/firebase/ios/firebase_impl.mm
index 8154d28298f..bed899567b9 100644
--- a/sky/services/firebase/ios/firebase_impl.mm
+++ b/sky/services/firebase/ios/firebase_impl.mm
@@ -159,8 +159,9 @@ void FirebaseImpl::AuthWithOAuthToken(
   }];
 }
 
-void FirebaseImpl::SetValue(const mojo::String& url) {
-  [client_ setValue:@(url.data())];
+void FirebaseImpl::SetValue(const mojo::String& jsonValue) {
+  // TODO(jackson): JSON deserialization
+  [client_ setValue:@(jsonValue.data())];
 }
 
 void FirebaseFactory::Create(