diff --git a/include/wintty.h b/include/wintty.h
index 3dbf13324..ad7f7ce05 100644
--- a/include/wintty.h
+++ b/include/wintty.h
@@ -299,6 +299,18 @@ E void tty_refresh_inventory(int start, int stop, int y);
 #undef clear_screen
 #endif
 #include <term.h>
+#ifdef bell
+#undef bell
+#endif
+#ifdef color_names
+#undef color_names
+#endif
+#ifdef tone
+#undef tone
+#endif
+#ifdef hangup
+#undef hangup
+#endif
 #else
 extern int tgetent(char *, const char *);
 extern void tputs(const char *, int, int (*)(int));