diff --git a/include/netutils/netlib.h b/include/netutils/netlib.h
index e2240a036..c390cf75b 100644
--- a/include/netutils/netlib.h
+++ b/include/netutils/netlib.h
@@ -49,6 +49,7 @@
 
 #include <nuttx/config.h>
 
+#include <sys/socket.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdio.h>