diff --git a/include/ntconf.h b/include/ntconf.h
index 05edf9071..bcfe2e9ee 100644
--- a/include/ntconf.h
+++ b/include/ntconf.h
@@ -98,7 +98,6 @@ extern void FDECL(interject, (int));
 #ifdef strcasecmp
 #undef strcasecmp
 #endif
-extern void FDECL(nethack_exit, (int));
 extern void NDECL(getlock);
 #endif
  
@@ -282,5 +281,5 @@ extern void FDECL(nhassert_failed, (const char * exp, const char * file,
 #endif
 
 #define nethack_enter(argc, argv) nethack_enter_winnt()
-
+extern void FDECL(nethack_exit, (int)) NORETURN;
 #endif /* NTCONF_H */
diff --git a/src/end.c b/src/end.c
index 3d316a5db..e2090bcdf 100644
--- a/src/end.c
+++ b/src/end.c
@@ -64,7 +64,7 @@ STATIC_DCL void NDECL(dump_plines);
 STATIC_DCL void FDECL(dump_everything, (int, time_t));
 STATIC_DCL int NDECL(num_extinct);
 
-#if defined(__BEOS__) || defined(MICRO) || defined(WIN32) || defined(OS2)
+#if defined(__BEOS__) || defined(MICRO) || defined(OS2)
 extern void FDECL(nethack_exit, (int));
 #else
 #define nethack_exit exit