From 93fa9892389c6206f6b7fe99b3032096abd10d88 Mon Sep 17 00:00:00 2001
From: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
Date: Fri, 4 Sep 2026 20:42:41 -0700
Subject: [PATCH] fix(router): fall back to the deployment voice without a
 conditional dict spread

---
 litellm/router.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/litellm/router.py b/litellm/router.py
index 3b7f2d79823..c211e385d95 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -4518,7 +4518,7 @@ class Router:
                 **{
                     **data,
                     "input": input,
-                    **({"voice": voice} if voice is not None else {}),
+                    "voice": data.get("voice") if voice is None else voice,
                     "client": model_client,
                     **kwargs,
                 }