diff --git a/src/accelerate/optimizer.py b/src/accelerate/optimizer.py
index cfc6874826d..7c03f74a147 100644
--- a/src/accelerate/optimizer.py
+++ b/src/accelerate/optimizer.py
@@ -197,7 +197,7 @@ def __setstate__(self, state):
             self._optimizer_original_step_method = self.optimizer.step
             self._optimizer_patched_step_method = patch_optimizer_step(self, self.optimizer.step)
 
-    def multiply_grads(self, constant) -> None:
+    def multiply_grads(self, constant):
         """
         Multiplies the gradients of the parameters by a constant. Needed during gradient accumulation.