1 files changed, 1 insertions, 0 deletions
diff --git a/deps/udns/configure b/deps/udns/configure
index 1cbac6b308..14e1b7078c 100755
--- a/deps/udns/configure
+++ b/deps/udns/configure
@@ -83,6 +83,7 @@ ac_ign \
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
+#include <netinet/in.h>
 int main() {
   char buf[64];
   long x = 0;