diff --git a/configure.ac b/configure.ac
index 19a6d39..11311c5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,6 +136,9 @@
 
 AC_CHECK_FUNCS([vsnprintf snprintf strcasecmp strncasecmp])
 
+# Network functions
+AC_SEARCH_LIBS([inet_aton], [resolv])
+
 # IPv6 related functions
 AC_CHECK_FUNCS([inet_ntop getaddrinfo])