diff --git a/cvat/apps/engine/static/engine/js/shapeSplitter.js b/cvat/apps/engine/static/engine/js/shapeSplitter.js
index 1a1bf9c5..e32e83d2 100644
--- a/cvat/apps/engine/static/engine/js/shapeSplitter.js
+++ b/cvat/apps/engine/static/engine/js/shapeSplitter.js
@@ -58,6 +58,8 @@ class ShapeSplitter {
                 attributes: curAttributes,
             }));
 
+            // don't clone id of splitted object
+            delete exported.id;
             let prevExported = Object.assign({}, exported);
             let curExported = Object.assign({}, exported);
             prevExported.shapes = prevPositionList;
@@ -71,4 +73,4 @@ class ShapeSplitter {
             return [exported];
         }
     }
-}
\ No newline at end of file
+}