diff --git a/backend/operations.py b/backend/operations.py
index b0655b45..17513ad5 100644
--- a/backend/operations.py
+++ b/backend/operations.py
@@ -404,6 +404,8 @@ class ForgeOperationsInt8(ForgeOperations):
             self.compute_dtype = torch.bfloat16
             self.lora_patches = []  # List of (down_scaled, up, start, size) set by INT8ModelPatcher
 
+            self.parameters_manual_cast = True
+
         def reset_parameters(self):
             return None