--- VirtualBox-5.0.16/src/VBox/Runtime/r3/linux/sysfs.cpp
+++ VirtualBox-5.0.16-fix/src/VBox/Runtime/r3/linux/sysfs.cpp
@@ -43,6 +43,7 @@
 #include <sys/sysctl.h>
 #include <sys/stat.h>
 #include <sys/fcntl.h>
+#include <sys/sysmacros.h>
 #include <errno.h>
 
 /** @todo r=bird: This whole API should be rewritten to use IPRT status codes.