diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index a4d99cb0eca42..fee168254a85e 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -6580,6 +6580,7 @@ def fillna(
     def fillna(
         self: NDFrameT,
         value: Hashable | Mapping | Series | DataFrame = None,
+        *,
         method: FillnaOptions | None = None,
         axis: Axis | None = None,
         inplace: bool_t = False,