diff --git a/server/const.py b/server/const.py
index 15f758c3..eaa1a9ce 100644
--- a/server/const.py
+++ b/server/const.py
@@ -82,6 +82,7 @@ PitchExtractorType: TypeAlias = Literal[
     "crepe_tiny",
     "rmvpe",
     "rmvpe_onnx",
+    "fcpe",
 ]
 
 ServerAudioDeviceType: TypeAlias = Literal["audioinput", "audiooutput"]