diff --git a/dmidecode.c b/dmidecode.c
index 91c6f62..21bfd65 100644
--- a/dmidecode.c
+++ b/dmidecode.c
@@ -66,6 +66,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <arpa/inet.h>
+#include <sys/socket.h>
 
 #ifdef __FreeBSD__
 #include <errno.h>