diff --git a/sdk/servicebus/azure-servicebus/CHANGELOG.md b/sdk/servicebus/azure-servicebus/CHANGELOG.md
index 6bbb7a341554..b31709522598 100644
--- a/sdk/servicebus/azure-servicebus/CHANGELOG.md
+++ b/sdk/servicebus/azure-servicebus/CHANGELOG.md
@@ -8,6 +8,8 @@
 
 ### Bugs Fixed
 
+- Fixed a broken f-string present in a `ValueError` when using the async client ([37695](https://github.com/Azure/azure-sdk-for-python/issues/37695))
+
 ### Other Changes
 
 ## 7.12.3 (2024-09-19)
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
index 95bb447802a7..4438ad1ec7b1 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
@@ -480,7 +480,7 @@ async def create_message_batch(
         if max_size_in_bytes and max_size_in_bytes > self._max_message_size_on_link:
             raise ValueError(
                 f"Max message size: {max_size_in_bytes} is too large, "
-                "acceptable max batch size is: {self._max_message_size_on_link} bytes."
+                f"acceptable max batch size is: {self._max_message_size_on_link} bytes."
             )
 
         return ServiceBusMessageBatch(