diff --git a/quic/platform/api/quic_ip_address.h b/quic/platform/api/quic_ip_address.h
index 8f8db3a..f6013af 100644
--- a/quic/platform/api/quic_ip_address.h
+++ b/quic/platform/api/quic_ip_address.h
@@ -9,6 +9,7 @@
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #else
+#include <netinet/in.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #endif