diff --git a/tools/exekall/exekall/engine.py b/tools/exekall/exekall/engine.py
index af8b2489b385cdfe93973f9f3edee723b387015b..0dd45f0d53c72ea5ec45d29591d5cf35ecb57021 100644
--- a/tools/exekall/exekall/engine.py
+++ b/tools/exekall/exekall/engine.py
@@ -331,7 +331,8 @@ class ValueDB:
                 # That will keep proper inter-object references as in the
                 # original graph of objects
                 for froz_val_seq in copy.deepcopy(self.froz_val_seq_list)
-            ]
+            ],
+            adaptor_cls=self.adaptor_cls,
         )
 
     def get_all(self, **kwargs):