diff --git a/cf/roken-frag.m4 b/cf/roken-frag.m4
index 82ab691f4..af88223b6 100644
--- a/cf/roken-frag.m4
+++ b/cf/roken-frag.m4
@@ -112,6 +112,12 @@ AC_CHECK_HEADERS(sys/proc.h, , , [AC_INCLUDES_DEFAULT
 ])
 
 AC_CHECK_HEADERS(resolv.h, , , [AC_INCLUDES_DEFAULT
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
 #ifdef HAVE_ARPA_NAMESER_H
 #include <arpa/nameser.h>
 #endif