diff --git a/lib/cpp/src/Thrift.h b/lib/cpp/src/Thrift.h
index e077923..27a6476 100644
--- a/lib/cpp/src/Thrift.h
+++ b/lib/cpp/src/Thrift.h
@@ -25,6 +25,7 @@
 #endif
 #include <stdio.h>
 
+#include <sys/types.h>
 #include <netinet/in.h>
 #ifdef HAVE_INTTYPES_H
 #include <inttypes.h>