diff --git a/api_v2.py b/api_v2.py
index 21511db3..9eefd417 100644
--- a/api_v2.py
+++ b/api_v2.py
@@ -22,7 +22,7 @@ POST:
 ```json
 {
     "text": "",                   # str.(required) text to be synthesized
-    "text_lang: "",               # str.(required) language of the text to be synthesized
+    "text_lang": "",              # str.(required) language of the text to be synthesized
     "ref_audio_path": "",         # str.(required) reference audio path
     "aux_ref_audio_paths": [],    # list.(optional) auxiliary reference audio paths for multi-speaker tone fusion
     "prompt_text": "",            # str.(optional) prompt text for the reference audio
@@ -350,7 +350,7 @@ async def tts_handle(req: dict):
         req (dict):
             {
                 "text": "",                   # str.(required) text to be synthesized
-                "text_lang: "",               # str.(required) language of the text to be synthesized
+                "text_lang": "",              # str.(required) language of the text to be synthesized
                 "ref_audio_path": "",         # str.(required) reference audio path
                 "aux_ref_audio_paths": [],    # list.(optional) auxiliary reference audio paths for multi-speaker tone fusion
                 "prompt_text": "",            # str.(optional) prompt text for the reference audio