diff --git a/src/win32/endian.h b/src/win32/endian.h
index b8a646ab9f..534933f01c 100644
--- a/src/win32/endian.h
+++ b/src/win32/endian.h
@@ -4,3 +4,5 @@
 /* JKR added file, all hacks will be in the files added, not in EGCS */
 
 #include <sys/param.h>
+
+#endif /* _ENDIAN_H_ */
diff --git a/src/win32/un.h b/src/win32/un.h
index ca43303fa5..55f9b06d7c 100644
--- a/src/win32/un.h
+++ b/src/win32/un.h
@@ -8,3 +8,5 @@ struct sockaddr_un
 	short		sun_family;		/* AF_UNIX */
 	char		sun_path[108];	/* path name (gag) */
 };
+
+#endif /* _SYS_UN_H */