diff --git a/substra/sdk/models.py b/substra/sdk/models.py
index c45bedd0..1164a1cf 100644
--- a/substra/sdk/models.py
+++ b/substra/sdk/models.py
@@ -178,7 +178,7 @@ class Function(_Model):
     outputs: List[FunctionOutput]
 
     description: _File
-    function: _File
+    archive: _File
 
     type_: ClassVar[str] = schemas.Type.Function