diff --git a/src/rougail/annotator/check.py b/src/rougail/annotator/check.py
index 11074ff7..8ec0d6dd 100644
--- a/src/rougail/annotator/check.py
+++ b/src/rougail/annotator/check.py
@@ -1,10 +1,10 @@
 """Annotate check
 """
-from importlib.machinery import SourceFileLoader
 from typing import List, Any
 
 from .variable import CONVERT_OPTION
 
+from ..utils import load_modules
 from ..i18n import _
 from ..error import DictConsistencyError
 
@@ -21,8 +21,7 @@ class CheckAnnotator:
                 not hasattr(objectspace.space.constraints, 'check'):
             return
         self.objectspace = objectspace
-        eosfunc = SourceFileLoader('eosfunc', eosfunc_file).load_module()
-        self.functions = dir(eosfunc)
+        self.functions = dir(load_modules(eosfunc_file))
         self.functions.extend(INTERNAL_FUNCTIONS)
         self.check_check()
         self.check_valid_enum()
diff --git a/src/rougail/annotator/fill.py b/src/rougail/annotator/fill.py
index a11f15db..19de8db2 100644
--- a/src/rougail/annotator/fill.py
+++ b/src/rougail/annotator/fill.py
@@ -1,9 +1,7 @@
 """Fill annotator
 """
-from importlib.machinery import SourceFileLoader
-
+from ..utils import load_modules
 from ..i18n import _
-
 from ..error import DictConsistencyError
 
 
@@ -18,8 +16,7 @@ class FillAnnotator:
         if not hasattr(objectspace.space, 'constraints') or \
                 not hasattr(self.objectspace.space.constraints, 'fill'):
             return
-        eosfunc = SourceFileLoader('eosfunc', eosfunc_file).load_module()
-        self.functions = dir(eosfunc)
+        self.functions = dir(load_modules(eosfunc_file))
         self.convert_fill()
 
     def convert_fill(self) -> None:
diff --git a/src/rougail/template.py b/src/rougail/template.py
index 99d4ea4d..3238ac3f 100644
--- a/src/rougail/template.py
+++ b/src/rougail/template.py
@@ -4,7 +4,6 @@ Gestion du mini-langage de template
 On travaille sur les fichiers cibles
 """
 
-from importlib.machinery import SourceFileLoader
 from shutil import copy
 import logging
 from typing import Dict, Any
@@ -25,7 +24,7 @@ except ModuleNotFoundError:  # pragma: no cover
 from .config import Config
 from .error import FileNotFound, TemplateError
 from .i18n import _
-from .utils import normalize_family
+from .utils import normalize_family, load_modules
 
 
 log = logging.getLogger(__name__)
@@ -214,7 +213,7 @@ class CreoleTemplateEngine:
         self.distrib_dir = distrib_dir
         eos = {}
         if eosfunc_file is not None:
-            eosfunc = SourceFileLoader('eosfunc', eosfunc_file).load_module()
+            eosfunc = load_modules(eosfunc_file)
             for func in dir(eosfunc):
                 if not func.startswith('_'):
                     eos[func] = getattr(eosfunc, func)
diff --git a/src/rougail/utils.py b/src/rougail/utils.py
index 0bb53d1e..9c70326a 100644
--- a/src/rougail/utils.py
+++ b/src/rougail/utils.py
@@ -1,8 +1,12 @@
 """
 utilitaires créole
 """
+from typing import List
 from unicodedata import normalize, combining
 
+from importlib.machinery import SourceFileLoader
+from importlib.util import spec_from_loader, module_from_spec
+
 
 def normalize_family(family_name: str) -> str:
     """replace space, accent, uppercase, ... by valid character
@@ -11,3 +15,13 @@ def normalize_family(family_name: str) -> str:
     nfkd_form = normalize('NFKD', family_name)
     family_name = ''.join([c for c in nfkd_form if not combining(c)])
     return family_name.lower()
+
+
+def load_modules(eosfunc_file) -> List[str]:
+    """list all functions in eosfunc
+    """
+    loader = SourceFileLoader('eosfunc', eosfunc_file)
+    spec = spec_from_loader(loader.name, loader)
+    eosfunc = module_from_spec(spec)
+    loader.exec_module(eosfunc)
+    return eosfunc