diff --git a/object/service.proto b/object/service.proto
index 8ee955a..c5e4fc7 100644
--- a/object/service.proto
+++ b/object/service.proto
@@ -891,6 +891,10 @@ message PatchRequest {
     // key, then it just replaces it while merging the lists.
     bool replace_attributes = 3;
 
+    // New split header for the object. This defines how the object will relate
+    // to other objects in a split operation.
+    neo.fs.v2.object.Header.Split new_split_header = 5;
+
     // The patch for the object's payload.
     message Patch {
       // The range of the source object for which the payload is replaced by the