diff --git a/plugins/CuraEngineBackend/Cura.proto b/plugins/CuraEngineBackend/Cura.proto
index 0d4975aca4..c51829aeff 100644
--- a/plugins/CuraEngineBackend/Cura.proto
+++ b/plugins/CuraEngineBackend/Cura.proto
@@ -11,6 +11,8 @@ message ObjectList
 message Slice
 {
     repeated ObjectList object_lists = 1;
+    SettingList global_settings = 2;
+    repeated SettingsList extruder_settings = 3;
 }
 
 message Object