diff --git a/src/pipecat/services/gladia/config.py b/src/pipecat/services/gladia/config.py
index 275554418..da7907041 100644
--- a/src/pipecat/services/gladia/config.py
+++ b/src/pipecat/services/gladia/config.py
@@ -74,11 +74,13 @@ class TranslationConfig(BaseModel):
         target_languages: List of target language codes for translation
         model: Translation model to use ("base" or "enhanced")
         match_original_utterances: Whether to align translations with original utterances
+        informal: Force informal language forms when available 
     """
 
     target_languages: Optional[List[str]] = None
     model: Optional[str] = None
     match_original_utterances: Optional[bool] = None
+    informal: Optional[bool] = None
 
 
 class RealtimeProcessingConfig(BaseModel):