diff --git a/src/access.c b/src/access.c
index 25ee2948..19d8eef6 100644
--- a/src/access.c
+++ b/src/access.c
@@ -28,6 +28,7 @@
 #include <errno.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <sys/socket.h>
 
 #include <openssl/sha.h>
 #include <openssl/rand.h>