diff --git a/configure.in b/configure.in
index 4a84d22e4..8bf713153 100644
--- a/configure.in
+++ b/configure.in
@@ -176,7 +176,7 @@ AC_BROKEN_SNPRINTF
 AC_BROKEN_VSNPRINTF
 
 AC_CHECK_FUNCS(_getpty asnprintf asprintf fcntl gethostname gethostbyname2)
-AC_CHECK_FUNCS(getmsg grantpt logwtmp mktime ptsname rand random)
+AC_CHECK_FUNCS(getmsg grantpt inet_ntop logwtmp mktime ptsname rand random)
 AC_CHECK_FUNCS(revoke select setitimer setlogin setpcred setpgid)
 AC_CHECK_FUNCS(setsid setsockopt sigaction strstr timegm ttyname umask)
 AC_CHECK_FUNCS(unlockpt vasnprintf vasprintf vhangup)