diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index 253871b..8d125c9 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -19,6 +19,7 @@
  * 
  */
 
+#include <linux/platform_device.h>
 #include "tpm.h"
 
 /* National definitions */