diff --git a/include/libbb.h b/include/libbb.h
index acda7f615..759df8d26 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -19,6 +19,7 @@
 #include <termios.h>
 #include <stdint.h>
 
+#include <netinet/in.h>
 #include <netdb.h>
 
 #include <features.h>