diff --git a/lib/config-os400.h b/lib/config-os400.h
index bde4f0b33..a741e9185 100644
--- a/lib/config-os400.h
+++ b/lib/config-os400.h
@@ -127,12 +127,18 @@
 /* Define if you have the `getpass_r' function. */
 #undef HAVE_GETPASS_R
 
+/* Define to 1 if you have the getpeername function. */
+#define HAVE_GETPEERNAME 1
+
 /* Define if you have the `getpwuid' function. */
 #define HAVE_GETPWUID
 
 /* Define if you have the `getservbyname' function. */
 #define HAVE_GETSERVBYNAME
 
+/* Define to 1 if you have the getsockname function. */
+#define HAVE_GETSOCKNAME 1
+
 /* Define if you have the `gettimeofday' function. */
 #define HAVE_GETTIMEOFDAY