diff --git a/src/anemoi/transform/filters/icon_refinement_level.py b/src/anemoi/transform/filters/icon_refinement_level.py
index 9d88d47..7469245 100644
--- a/src/anemoi/transform/filters/icon_refinement_level.py
+++ b/src/anemoi/transform/filters/icon_refinement_level.py
@@ -24,7 +24,7 @@
 
 @filter_registry.register("icon_refinement_level")
 class IconRefinement(Filter):
-    """A filter to regrid fields using earthkit-regrid."""
+    """A filter interpolate its input to an ICON grid."""
 
     def __init__(self, *, grid, refinement_level_c):
         self.grid = grid
diff --git a/src/anemoi/transform/filters/remove_nans.py b/src/anemoi/transform/filters/remove_nans.py
index c486d66..40d8e55 100644
--- a/src/anemoi/transform/filters/remove_nans.py
+++ b/src/anemoi/transform/filters/remove_nans.py
@@ -23,7 +23,7 @@
 
 @filter_registry.register("remove_nans")
 class RemoveNaNs(Filter):
-    """A filter to regrid fields using earthkit-regrid."""
+    """A filter to mask out NaNs."""
 
     def __init__(self, *, method="mask", check=False):
         self.method = method