diff --git a/src/lib/net/buffers_net.c b/src/lib/net/buffers_net.c
index 01be30f5af18c0e8d40166f40d60d437a5144eff..edc9954f227737553474aa51e4e9a91bbac0aa40 100644
--- a/src/lib/net/buffers_net.c
+++ b/src/lib/net/buffers_net.c
@@ -9,6 +9,11 @@
 #include "lib/container/buffers.h"
 #include "lib/log/torlog.h"
 #include "lib/log/util_bug.h"
+#include "lib/net/nettypes.h"
+
+#ifdef _WIN32
+#include <winsock2.h>
+#endif
 
 #include <stdlib.h>