diff --git a/ptp4l.c b/ptp4l.c
index 6986aef..2648fe2 100644
--- a/ptp4l.c
+++ b/ptp4l.c
@@ -26,13 +26,12 @@
 #include "config.h"
 #include "pi.h"
 #include "print.h"
+#include "raw.h"
 #include "sk.h"
 #include "transport.h"
 #include "util.h"
 
 int assume_two_step;
-extern unsigned char ptp_dst_mac[]; /*see raw.c*/
-extern unsigned char p2p_dst_mac[]; /*see raw.c*/
 
 static int running = 1;
 
diff --git a/raw.h b/raw.h
index d062d41..c4747dd 100644
--- a/raw.h
+++ b/raw.h
@@ -23,6 +23,16 @@
 #include "fd.h"
 #include "transport.h"
 
+/**
+ * The MAC address to use for non-peer messages.
+ */
+extern unsigned char ptp_dst_mac[];
+
+/**
+ * The MAC address to use for peer messages.
+ */
+extern unsigned char p2p_dst_mac[];
+
 /**
  * Allocate an instance of a raw Ethernet transport.
  * @return Pointer to a new transport instance on success, NULL otherwise.