diff --git a/doc/fixes34.1 b/doc/fixes34.1
index 0b4075045..4a35c7ede 100644
--- a/doc/fixes34.1
+++ b/doc/fixes34.1
@@ -195,6 +195,7 @@ win32: strip illegal file name characters from plname and replace with '_'
 win32gui: make error() work; it was essentially non-operative in 3.4.0
 win32gui: fix alignment of columns in menu windows
 win32gui: Window menu File|Save worked during #quit disclosure processing
+win32gui: make mswin_yn_function() case insensitive like the tty version
 win32tty: honour the use_inverse option and default to ATR_BOLD if disabled
 win32tty: respond only to mouse clicks not mouse movement
 win32tty: allow ^C to abort the game at the "Who are you?" prompt
@@ -220,7 +221,7 @@ lootabc option
 runmode option
 showrace option
 travel option
-cmdassist option to provide additional feedback for some commands
+cmdassist option to provide additional error feedback for some commands
 mouse_support wincap option
 debug mode: #panic routine to test panic() and panic save file generation
 a new PANICLOG optional file to log the reason for panic and impossible messages
diff --git a/win/win32/mswproc.c b/win/win32/mswproc.c
index 933bf6d3b..b9e872b51 100644
--- a/win/win32/mswproc.c
+++ b/win/win32/mswproc.c
@@ -1429,7 +1429,7 @@ char mswin_yn_function(const char *question, const char *choices,
     /* Only here if main window is not present */
     while (result<0) {
         ShowCaret(mswin_hwnd_from_winid(WIN_MESSAGE));
-	ch=mswin_nhgetch();
+	ch=lowc(mswin_nhgetch());
         HideCaret(mswin_hwnd_from_winid(WIN_MESSAGE));
 	if (ch=='\033') {
 	    result=yn_esc_map;