diff --git a/libnetutil/netutil.h b/libnetutil/netutil.h
index 609b61abc..58fe71286 100644
--- a/libnetutil/netutil.h
+++ b/libnetutil/netutil.h
@@ -162,6 +162,9 @@ struct abstract_ip_hdr {
   u32 ipid; /* IPv4 IP ID or IPv6 flow label. */
 };
 
+#ifdef WIN32
+__declspec(noreturn)
+#endif
 void netutil_fatal(const char *str, ...)
      __attribute__ ((noreturn))
      __attribute__ ((format (printf, 1, 2)));
diff --git a/nbase/nbase_memalloc.c b/nbase/nbase_memalloc.c
index 4bf91f253..583d702e8 100644
--- a/nbase/nbase_memalloc.c
+++ b/nbase/nbase_memalloc.c
@@ -129,6 +129,9 @@
 #include "nbase.h"
 #include <stdio.h>
 
+#ifdef WIN32
+__declspec(noreturn)
+#endif
 static void fatal(char *fmt, ...)
   __attribute__ ((noreturn))
   __attribute__ ((format (printf, 1, 2)));
diff --git a/ncat/util.h b/ncat/util.h
index f9bf2eb58..d162380f3 100644
--- a/ncat/util.h
+++ b/ncat/util.h
@@ -168,6 +168,9 @@ do { \
 
 void die(char *);
 
+#ifdef WIN32
+__declspec(noreturn)
+#endif
 void bye(const char *, ...)
      __attribute__ ((noreturn))
      __attribute__ ((format (printf, 1, 2)));
diff --git a/nsock/src/error.h b/nsock/src/error.h
index c00088759..0d29e063b 100644
--- a/nsock/src/error.h
+++ b/nsock/src/error.h
@@ -75,10 +75,16 @@
 #endif
 
 
+#ifdef WIN32
+__declspec(noreturn)
+#endif
 void fatal(char *fmt, ...)
   __attribute__ ((noreturn))
   __attribute__ ((format (printf, 1, 2)));
 
+#ifdef WIN32
+__declspec(noreturn)
+#endif
 void pfatal(char *fmt, ...)
   __attribute__ ((noreturn))
   __attribute__ ((format (printf, 1, 2)));