diff --git a/Doc/library/winsound.rst b/Doc/library/winsound.rst
index f7ca9dc57bbe28..799fb3dea19501 100644
--- a/Doc/library/winsound.rst
+++ b/Doc/library/winsound.rst
@@ -135,6 +135,13 @@ provided by Windows platforms.  It includes functions and several constants.
       This flag is not supported on modern Windows platforms.
 
 
+.. data:: SND_APPLICATION
+
+   The *sound* parameter is an application-specific alias in the registry.
+   This flag can be combined with the :const:`SND_ALIAS` flag
+   to specify an application-defined sound alias.
+
+
 .. data:: MB_ICONASTERISK
 
    Play the ``SystemDefault`` sound.
diff --git a/PC/winsound.c b/PC/winsound.c
index 094c77ae34d678..1cb42f2f3bdfc6 100644
--- a/PC/winsound.c
+++ b/PC/winsound.c
@@ -56,6 +56,7 @@ PyDoc_STRVAR(sound_module_doc,
 "SND_NODEFAULT - Do not play a default beep if the sound can not be found\n"
 "SND_NOSTOP - Do not interrupt any sounds currently playing\n"  // Raising RuntimeError if needed
 "SND_NOWAIT - Return immediately if the sound driver is busy\n" // Without any errors
+"SND_APPLICATION - sound is an application-specific alias in the registry."
 "\n"
 "Beep(frequency, duration) - Make a beep through the PC speaker.\n"
 "MessageBeep(type) - Call Windows MessageBeep.");