diff --git a/drivers/isdn/mISDN/clock.c b/drivers/isdn/mISDN/clock.c
index 1fa629b..7418f2d 100644
--- a/drivers/isdn/mISDN/clock.c
+++ b/drivers/isdn/mISDN/clock.c
@@ -38,6 +38,7 @@
 #include <linux/stddef.h>
 #include <linux/spinlock.h>
 #include <linux/mISDNif.h>
+#include <linux/export.h>
 #include "core.h"
 
 static u_int *debug;
diff --git a/drivers/isdn/mISDN/dsp_audio.c b/drivers/isdn/mISDN/dsp_audio.c
index 0afe9f2..735d535 100644
--- a/drivers/isdn/mISDN/dsp_audio.c
+++ b/drivers/isdn/mISDN/dsp_audio.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/export.h>
 #include <linux/mISDNif.h>
 #include <linux/mISDNdsp.h>
 #include "core.h"