diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a51132af..433555890 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed an issue where audio filters' `stop()` would not be called when using
   `CancelFrame`.
 
+- Fixed an issue in `ElevenLabsHttpTTSService`, where
+  `apply_text_normalization` was incorrectly set as a query parameter. It's now
+  being added as a request parameter.
+
 - Fixed an issue where `RimeHttpTTSService` and `PiperTTSService` could generate
   incorrectly 16-bit aligned audio frames, potentially leading to internal
   errors or static audio.
diff --git a/src/pipecat/services/elevenlabs/tts.py b/src/pipecat/services/elevenlabs/tts.py
index a9bf65376..080f54cd6 100644
--- a/src/pipecat/services/elevenlabs/tts.py
+++ b/src/pipecat/services/elevenlabs/tts.py
@@ -985,6 +985,9 @@ class ElevenLabsHttpTTSService(WordTTSService):
         if self._voice_settings:
             payload["voice_settings"] = self._voice_settings
 
+        if self._settings["apply_text_normalization"] is not None:
+            payload["apply_text_normalization"] = self._settings["apply_text_normalization"]
+
         language = self._settings["language"]
         if self._model_name in ELEVENLABS_MULTILINGUAL_MODELS and language:
             payload["language_code"] = language
@@ -1005,8 +1008,6 @@ class ElevenLabsHttpTTSService(WordTTSService):
         }
         if self._settings["optimize_streaming_latency"] is not None:
             params["optimize_streaming_latency"] = self._settings["optimize_streaming_latency"]
-        if self._settings["apply_text_normalization"] is not None:
-            params["apply_text_normalization"] = self._settings["apply_text_normalization"]
 
         try:
             await self.start_ttfb_metrics()