diff --git a/src/galdynamix/dynamics/mockstream/_df/base.py b/src/galdynamix/dynamics/mockstream/_df/base.py
index 586a2062..5e940991 100644
--- a/src/galdynamix/dynamics/mockstream/_df/base.py
+++ b/src/galdynamix/dynamics/mockstream/_df/base.py
@@ -75,7 +75,7 @@ def scan_fn(carry: Carry, t: jt.Numeric) -> tuple[Carry, Wif]:
                 i=i,
                 seed_num=seed_num,
             )
-            return (i + 1, *output), tuple(output)  # type: ignore[return-value]
+            return (i + 1, *output), tuple(output)
 
         init_carry = (
             0,