diff --git a/win/curses/cursdial.c b/win/curses/cursdial.c
index 53918aa59..1161f16c8 100644
--- a/win/curses/cursdial.c
+++ b/win/curses/cursdial.c
@@ -297,7 +297,7 @@ curses_character_input_dialog(
 #ifdef PDCURSES
         answer = wgetch(message_window);
 #else
-        answer = getch();
+        answer = curses_read_char();
 #endif
         if (answer == ERR) {
             answer = def;
@@ -1487,7 +1487,7 @@ menu_get_selections(WINDOW *win, nhmenu *menu, int how)
     menu_display_page(menu, win, curpage, selectors, groupaccels);
 
     while (!dismiss) {
-        curletter = getch();
+        curletter = curses_read_char();
 
         if (curletter == ERR) {
             num_selected = -1;
diff --git a/win/curses/cursmain.c b/win/curses/cursmain.c
index 4c5595507..72979d5b2 100644
--- a/win/curses/cursmain.c
+++ b/win/curses/cursmain.c
@@ -1024,7 +1024,7 @@ void
 curses_delay_output(void)
 {
 #ifdef TIMED_DELAY
-    if (flags.nap) {
+    if (flags.nap && !iflags.debug_fuzzer) {
         /* refreshing the whole display is a waste of time,
          * but that's why we're here */
         refresh();
diff --git a/win/curses/cursmesg.c b/win/curses/cursmesg.c
index 70f30ecbf..49b3e4703 100644
--- a/win/curses/cursmesg.c
+++ b/win/curses/cursmesg.c
@@ -226,7 +226,10 @@ curses_block(boolean noscroll) /* noscroll - blocking because of msgtype
 
     oldcrsr = curs_set(1);
     do {
-        ret = wgetch(win);
+        if (iflags.debug_fuzzer)
+            ret = '\n';
+        else
+            ret = curses_read_char();
         if (ret == ERR || ret == '\0')
             ret = '\n';
         /* msgtype=stop should require space/enter rather than any key,
@@ -629,7 +632,7 @@ curses_message_win_getline(const char *prompt, char *answer, int buffer)
 #ifdef PDCURSES
         ch = wgetch(win);
 #else
-        ch = getch();
+        ch = curses_read_char();
 #endif
         curs_set(0);
 
diff --git a/win/curses/cursmisc.c b/win/curses/cursmisc.c
index 1780a8f76..d0b4adde5 100644
--- a/win/curses/cursmisc.c
+++ b/win/curses/cursmisc.c
@@ -39,7 +39,10 @@ curses_read_char(void)
     /* cancel message suppression; all messages have had a chance to be read */
     curses_got_input();
 
-    ch = getch();
+    if (iflags.debug_fuzzer)
+        ch = randomkey();
+    else
+        ch = getch();
 #if defined(ALT_0) || defined(ALT_9) || defined(ALT_A) || defined(ALT_Z)
     tmpch = ch;
 #endif