diff --git a/comfy/float.py b/comfy/float.py
index 0c8f1d6c..521316fd 100644
--- a/comfy/float.py
+++ b/comfy/float.py
@@ -41,6 +41,8 @@ def manual_stochastic_round_to_float8(x, dtype, generator=None):
         (2.0 ** (-EXPONENT_BIAS + 1)) * abs_x
     )
 
+    inf = torch.finfo(dtype)
+    torch.clamp(sign, min=inf.min, max=inf.max, out=sign)
     return sign