diff --git a/warpers.py b/warpers.py
index bedd3445..0eda0eda 100644
--- a/warpers.py
+++ b/warpers.py
@@ -105,7 +105,7 @@ class TypicalLogitsWarper(LogitsWarper):
     Typical sampling, described in https://arxiv.org/pdf/2202.00666.pdf
     '''
 
-    def __init__(self, typical: float, filter_value: -float("Inf"), min_tokens_to_keep: int = 1):
+    def __init__(self, typical: float, filter_value: float = -float("Inf"), min_tokens_to_keep: int = 1):
         typical = float(typical)
         if typical < 0 or typical > 1.0:
             raise ValueError(f"`typical` has to be a float >= 0 and <= 1, but is {typical}")