diff --git a/configure.in b/configure.in
index 4d17d3f7d7..8ee912849c 100644
--- a/configure.in
+++ b/configure.in
@@ -367,8 +367,14 @@ dnl These headers are not essential
 
 AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h stddef.h inttypes.h utime.h sys/utime.h sys/mman.h alloca.h)
 
-AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0])
-AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0])
+AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0],
+[#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif])
+AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0],
+[#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif])
 AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
         [linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0],
 [#ifdef HAVE_SYS_SOCKET_H