diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 06189e55b4e5a0479d2eaab0a31610ef91bf472f..94c280d36e8b3bfaea00ee36c4fe3215818b3c86 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
+#include <xen/xen.h>
 #include <xen/events.h>
 #include <xen/interface/io/tpmif.h>
 #include <xen/grant_table.h>