diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index 7b564c0..207cae3 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -17,6 +17,8 @@
 #include <linux/ctype.h>
 #include <linux/sched.h>	/* current */
 
+#include "capifs.h"
+
 MODULE_DESCRIPTION("CAPI4Linux: /dev/capi/ filesystem");
 MODULE_AUTHOR("Carsten Paeth");
 MODULE_LICENSE("GPL");
diff --git a/drivers/isdn/hardware/eicon/os_bri.c b/drivers/isdn/hardware/eicon/os_bri.c
index 4cc44a5..f31bba5 100644
--- a/drivers/isdn/hardware/eicon/os_bri.c
+++ b/drivers/isdn/hardware/eicon/os_bri.c
@@ -16,6 +16,7 @@
 #include "diva_pci.h"
 #include "mi_pc.h"
 #include "pc_maint.h"
+#include "dsrv_bri.h"
 
 /*
 **  IMPORTS
diff --git a/drivers/isdn/hardware/eicon/os_pri.c b/drivers/isdn/hardware/eicon/os_pri.c
index 8ac207f..a296a84 100644
--- a/drivers/isdn/hardware/eicon/os_pri.c
+++ b/drivers/isdn/hardware/eicon/os_pri.c
@@ -18,6 +18,7 @@
 #include "pc_maint.h"
 #include "dsp_tst.h"
 #include "diva_dma.h"
+#include "dsrv_pri.h"
 
 /* --------------------------------------------------------------------------
    OS Dependent part of XDI driver for DIVA PRI Adapter