diff --git a/src/server.c b/src/server.c
index c40e455..2851242 100644
--- a/src/server.c
+++ b/src/server.c
@@ -2,6 +2,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <netinet/in.h>
 #include <openssl/err.h>
 #include <signal.h>
 #include <stdbool.h>