diff --git a/slcand.c b/slcand.c
index 831e8c6..d71ba4d 100644
--- a/slcand.c
+++ b/slcand.c
@@ -28,6 +28,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/socket.h>
 #include <fcntl.h>
 #include <syslog.h>
 #include <errno.h>