diff --git a/python/revng/model/__init__.py b/python/revng/model/__init__.py
index 917f6ac1c..06901fdc5 100644
--- a/python/revng/model/__init__.py
+++ b/python/revng/model/__init__.py
@@ -33,12 +33,6 @@ class Binary(_generated.Binary):
         _fix_references(obj)
         return obj
 
-    def serialize(self, output: Optional[TextIOBase] = None):
-        if output is None:
-            return yaml.dump(self, Dumper=YamlDumper)
-        else:
-            return yaml.dump(self, output, Dumper=YamlDumper)
-
 
 class DiffSet(TTDiffSet[Binary]):
     @staticmethod
diff --git a/scripts/tuple_tree_generator/templates/tuple_tree_gen.py.tpl b/scripts/tuple_tree_generator/templates/tuple_tree_gen.py.tpl
index 5da0a9a81..f2fc89fc5 100644
--- a/scripts/tuple_tree_generator/templates/tuple_tree_gen.py.tpl
+++ b/scripts/tuple_tree_generator/templates/tuple_tree_gen.py.tpl
@@ -6,7 +6,10 @@
 import random
 import sys
 from dataclasses import dataclass, field
-from typing import ClassVar
+from io import TextIOBase
+from typing import ClassVar, Optional
+
+import yaml
 
 from revng.tupletree import (
     EnumBase,
@@ -146,6 +149,11 @@ class #{ struct.name }#(
         return #{ struct | gen_key }#
     ## endif ##
 
+    def serialize(self, output: Optional[TextIOBase] = None):
+        if output is None:
+            return yaml.dump(self, Dumper=YamlDumper)
+        else:
+            return yaml.dump(self, output, Dumper=YamlDumper)
 ## endfor ##
 
 ## for struct in structs ##