diff --git a/sys/net/destiny/socket.h b/sys/net/destiny/socket.h
index 7c47c84f7c..be8a554da7 100644
--- a/sys/net/destiny/socket.h
+++ b/sys/net/destiny/socket.h
@@ -25,6 +25,7 @@
 #include "udp.h"
 #include "in.h"
 #include "ipv6.h"
+#include "cpu.h"
 
 /*
  * POSIX compatibility