diff --git a/stats_utils/compensator.py b/stats_utils/compensator.py
index 4865d36..9e37e31 100644
--- a/stats_utils/compensator.py
+++ b/stats_utils/compensator.py
@@ -188,7 +188,7 @@ def get_95_bound_and_compensation_from_parasitemia(
         rbcs: Union[int, float],
         units_ul_in: bool,
         units_ul_out: bool = False,
-    ) -> Tuple[float, List[float]]:
+    ) -> Tuple[float, float]:
         """
         Return compensated parasitemia and 95% confidence bound based on raw parasitemia and total rbcs