diff --git a/SockAddress.h b/SockAddress.h
index a696729..34a4692 100644
--- a/SockAddress.h
+++ b/SockAddress.h
@@ -23,6 +23,7 @@
 
 #include <strings.h>
 #include <netinet/in.h>
+#include <arpa/inet.h>
 
 class CSockAddress
 {