diff --git a/instructor/dsl/partial.py b/instructor/dsl/partial.py
index d2b353d3a..95dcb9bb0 100644
--- a/instructor/dsl/partial.py
+++ b/instructor/dsl/partial.py
@@ -106,10 +106,10 @@ def _make_field_optional(
         tmp_field.annotation = Optional[Partial[annotation, MakeFieldsOptional]]  # type: ignore[assignment, valid-type]
         tmp_field.default = {}
     else:
-        tmp_field.annotation = Optional[field.annotation]
+        tmp_field.annotation = Optional[field.annotation]  # type:ignore
         tmp_field.default = None
 
-    return tmp_field.annotation, tmp_field
+    return tmp_field.annotation, tmp_field  # type: ignore
 
 
 class PartialBase(Generic[T_Model]):