diff --git a/include/audioclient.idl b/include/audioclient.idl
index a7556047222..72b3ae942eb 100644
--- a/include/audioclient.idl
+++ b/include/audioclient.idl
@@ -285,9 +285,8 @@ interface IChannelAudioVolume : IUnknown
     );
 }
 
-cpp_quote("#define FACILIY_AUDCLNT 0x889")
-cpp_quote("#define AUDCLNT_ERR(n) MAKE_HRESULT(SEVERITY_ERROR, FACILIY_AUDCLNT, n)")
-cpp_quote("#define AUDCLNT_SUCCESS(n) MAKE_SCODE(SEVERITY_SUCCESS, FACILIY_AUDCLNT, n)")
+cpp_quote("#define AUDCLNT_ERR(n) MAKE_HRESULT(SEVERITY_ERROR, FACILITY_AUDCLNT, n)")
+cpp_quote("#define AUDCLNT_SUCCESS(n) MAKE_SCODE(SEVERITY_SUCCESS, FACILITY_AUDCLNT, n)")
 cpp_quote("#define AUDCLNT_E_NOT_INITIALIZED AUDCLNT_ERR(1)")
 cpp_quote("#define AUDCLNT_E_ALREADY_INITIALIZED AUDCLNT_ERR(2)")
 cpp_quote("#define AUDCLNT_E_WRONG_ENDPOINT_TYPE AUDCLNT_ERR(3)")
diff --git a/include/winerror.h b/include/winerror.h
index 9c1b7f17988..b0848b55c76 100644
--- a/include/winerror.h
+++ b/include/winerror.h
@@ -60,6 +60,7 @@
 #define FACILITY_FVE                         49
 #define FACILITY_WINDOWS_DEFENDER            80
 #define FACILITY_DIRECT3D11                  0x87c
+#define FACILITY_AUDCLNT                     0x889
 
 #define SEVERITY_SUCCESS    0
 #define SEVERITY_ERROR      1