diff --git a/whisper_streaming/transcriber.py b/whisper_streaming/transcriber.py
index 696cf10..c2d3968 100644
--- a/whisper_streaming/transcriber.py
+++ b/whisper_streaming/transcriber.py
@@ -67,7 +67,7 @@ class WhisperStreamingTranscriber:
     ) -> DecodingOptions:
         return DecodingOptions(
             task="transcribe",
-            language=None,
+            language=self.config.language,
             temperature=t,
             sample_len=None,
             best_of=best_of,