diff --git a/src/gt4py/next/ffront/decorator.py b/src/gt4py/next/ffront/decorator.py
index 4abd8f156a..53159008f0 100644
--- a/src/gt4py/next/ffront/decorator.py
+++ b/src/gt4py/next/ffront/decorator.py
@@ -775,6 +775,7 @@ def scan_operator(
     forward: bool,
     init: core_defs.Scalar,
     backend: Optional[str],
+    grid_type: GridType,
 ) -> FieldOperator[foast.ScanOperator]:
     ...
 
@@ -786,6 +787,7 @@ def scan_operator(
     forward: bool,
     init: core_defs.Scalar,
     backend: Optional[str],
+    grid_type: GridType,
 ) -> Callable[[types.FunctionType], FieldOperator[foast.ScanOperator]]:
     ...
 
@@ -797,6 +799,7 @@ def scan_operator(
     forward: bool = True,
     init: core_defs.Scalar = 0.0,
     backend=None,
+    grid_type: GridType = None,
 ) -> (
     FieldOperator[foast.ScanOperator]
     | Callable[[types.FunctionType], FieldOperator[foast.ScanOperator]]
@@ -834,6 +837,7 @@ def scan_operator_inner(definition: types.FunctionType) -> FieldOperator:
         return FieldOperator.from_function(
             definition,
             backend,
+            grid_type,
             operator_node_cls=foast.ScanOperator,
             operator_attributes={"axis": axis, "forward": forward, "init": init},
         )