diff --git a/ares/configure.ac b/ares/configure.ac
index b28c892d13..ca8bb6add6 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -68,7 +68,8 @@ AC_CHECK_HEADERS(
        winsock.h \
        netinet/in.h \
        arpa/nameser.h \
-       arpa/nameser_compat.h
+       arpa/nameser_compat.h \
+       arpa/inet.h
   )
 
 dnl check for AF_INET6