diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e00b4ddd0830699bca8bab65c3e855657b21978..792868d24f2a0f2ad6bc21a4967ace01a2f84d92 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -224,6 +224,7 @@ struct	tpm_readpubek_params_out {
 	u8	algorithm[4];
 	u8	encscheme[2];
 	u8	sigscheme[2];
+	__be32	paramsize;
 	u8	parameters[12]; /*assuming RSA*/
 	__be32	keysize;
 	u8	modulus[256];