diff --git a/src/rougail/convert.py b/src/rougail/convert.py
index 6f04a7b2c..8386c5f42 100644
--- a/src/rougail/convert.py
+++ b/src/rougail/convert.py
@@ -467,7 +467,7 @@ class ParserVariable:
             return
         family_obj = {}
         subfamily_obj = {}
-        force_to_attrs = list(self.list_attributes(obj))
+        force_to_attrs = list(self.list_attributes(obj, version))
         for key, value in obj.items():
             if key in force_to_attrs:
                 if key.startswith("_"):
@@ -545,6 +545,7 @@ class ParserVariable:
     def list_attributes(
         self,
         obj: Dict[str, Any],
+        version: str,
     ) -> Iterator[str]:
         """List attributes"""
         force_to_variable = []
@@ -567,8 +568,7 @@ class ParserVariable:
             ):
                 # it's a dict, so a new variables!
                 continue
-            # FIXME should be remove with 1.0 format
-            if key == "variable" and obj.get("type") != "dynamic":
+            if version == '1.0' and key == "variable" and obj.get("type") != "dynamic" and obj.get("_type") != "dynamic":
                 continue
             if key in self.family_attrs:
                 yield key
@@ -595,13 +595,14 @@ class ParserVariable:
                     raise DictConsistencyError(f'dynamic family must have "variable" attribute for "{path}"', 101, family["xmlfiles"])
                 if 'dynamic' in family:
                     raise DictConsistencyError('variable and dynamic cannot be set together in the dynamic family "{path}"', 100, family['xmlfiles'])
+            #FIXME compatibility to 1.0
+            if "variable" in family:
                 family['dynamic'] = {'type': 'variable',
                                      'variable': family['variable'],
                                      'propertyerror': False,
                                      'allow_none': True,
                                      }
                 del family['variable']
-            #FIXME only for 1.0
             if "variable" in family:
                 raise Exception(f'dynamic family must not have "variable" attribute for "{family["path"]}" in {family["xmlfiles"]}')
         else:
diff --git a/src/rougail/update.py b/src/rougail/update.py
index bd30ea881..5960d0cda 100644
--- a/src/rougail/update.py
+++ b/src/rougail/update.py
@@ -36,7 +36,6 @@ except ModuleNotFoundError as err:
 # from ast import parse as ast_parse
 from json import dumps
 from ruamel.yaml import YAML
-from yaml import dump, SafeDumper
 from pathlib import Path
 
 from .i18n import _