diff --git a/secure/master.c b/secure/master.c
index a677902..481b9eb 100644
--- a/secure/master.c
+++ b/secure/master.c
@@ -31,6 +31,7 @@
 #include "/sys/rtlimits.h"
 #include "/sys/debug_info.h"
 #include "/sys/configuration.h"
+#include "/sys/driver_hook.h"
 #include "/sys/regexp.h"
 
 // Module des Master einfuegen. Per #include, damits geringfuegig schneller.