diff --git a/ChangeLog b/ChangeLog
index 365f6fa7b8..d1a19aab68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-07-03  Jakub Jelinek  <jakub@redhat.com>
+
+	[BZ #4702]
+	* nis/nss-default.c: Include errno.h.
+	(init): Preserve errno.
+
 2007-06-19  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/generic/ldsodefs.h (rtld_global): Reorder some elements
diff --git a/nis/nss-default.c b/nis/nss-default.c
index 577f7c2d47..ab160b210b 100644
--- a/nis/nss-default.c
+++ b/nis/nss-default.c
@@ -17,6 +17,7 @@
    02111-1307 USA.  */
 
 #include <ctype.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdio_ext.h>
 #include <stdlib.h>
@@ -54,6 +55,7 @@ static const struct
 static void
 init (void)
 {
+  int saved_errno = errno;
   FILE *fp = fopen (default_nss, "rc");
   if (fp != NULL)
     {
@@ -111,6 +113,7 @@ init (void)
 
       fclose (fp);
     }
+  __set_errno (saved_errno);
 }