diff --git a/config.h.in b/config.h.in
index 99b38ef10..350652aba 100644
--- a/config.h.in
+++ b/config.h.in
@@ -215,6 +215,9 @@
 /* Define if you have the <fnmatch.h> header file.  */
 #undef HAVE_FNMATCH_H
 
+/* Define if you have the <netgroup.h> header file.  */
+#undef HAVE_NETGROUP_H
+
 /* Define if you have the <termio.h> header file.  */
 #undef HAVE_TERMIO_H
 
diff --git a/configure.in b/configure.in
index 2288b48f3..5b7ea5454 100644
--- a/configure.in
+++ b/configure.in
@@ -456,7 +456,7 @@ dnl Header file checks
 dnl
 AC_HEADER_STDC
 AC_HEADER_DIRENT
-AC_CHECK_HEADERS(string.h strings.h unistd.h malloc.h paths.h utime.h fnmatch.h sys/sockio.h sys/bsdtypes.h)
+AC_CHECK_HEADERS(string.h strings.h unistd.h malloc.h paths.h utime.h fnmatch.h netgroup.h sys/sockio.h sys/bsdtypes.h)
 dnl ultrix termio/termios are broken
 if test "$OS" != "ultrix"; then
     AC_CHECK_HEADERS(termio.h)