diff --git a/modules/beast_core/native/mac_Network.mm b/modules/beast_core/native/mac_Network.mm
index 2d40d49808..4002e97ab0 100644
--- a/modules/beast_core/native/mac_Network.mm
+++ b/modules/beast_core/native/mac_Network.mm
@@ -21,6 +21,8 @@
 */
 //==============================================================================
 
+#include "../network/URL.h"
+
 void MACAddress::findAllAddresses (Array<MACAddress>& result)
 {
     ifaddrs* addrs = nullptr;