diff --git a/master/datagram.h b/master/datagram.h
index 8d2f8920..9b5c4bbb 100644
--- a/master/datagram.h
+++ b/master/datagram.h
@@ -42,6 +42,7 @@
 #define _EC_DATAGRAM_H_
 
 #include <linux/list.h>
+#include <linux/time.h>
 #include <linux/timex.h>
 
 #include "globals.h"
diff --git a/master/debug.c b/master/debug.c
index 3ade15ef..01e8f637 100644
--- a/master/debug.c
+++ b/master/debug.c
@@ -38,6 +38,7 @@
 
 /*****************************************************************************/
 
+#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 
 #include "globals.h"
diff --git a/master/domain.c b/master/domain.c
index cc7869da..ebda3f9f 100644
--- a/master/domain.c
+++ b/master/domain.c
@@ -38,6 +38,8 @@
 
 /*****************************************************************************/
 
+#include <linux/module.h>
+
 #include "globals.h"
 #include "domain.h"
 #include "master.h"
diff --git a/master/ethernet.c b/master/ethernet.c
index f1cebbfe..0fcd0fac 100644
--- a/master/ethernet.c
+++ b/master/ethernet.c
@@ -38,6 +38,7 @@
 
 /*****************************************************************************/
 
+#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 
 #include "../include/ecrt.h"