diff --git a/crane_visualization_interfaces/proto/ObjectsArray.proto b/crane_visualization_interfaces/proto/ObjectsArray.proto
index f5fc676e..6d00b4b7 100644
--- a/crane_visualization_interfaces/proto/ObjectsArray.proto
+++ b/crane_visualization_interfaces/proto/ObjectsArray.proto
@@ -147,9 +147,9 @@ message SvgPrimitive {
   uint32 id = 1;
   float lifetime = 2;
   string svg_text = 3;
-  string primitive_namespace = 4;
 }
 
 message SvgPrimitiveArray {
-  repeated SvgPrimitive primitives = 1;
+  string layer = 1;
+  repeated SvgPrimitive primitives = 2;
 }