diff --git a/drivers/media/dvb-frontends/m88ds3103_priv.h b/drivers/media/dvb-frontends/m88ds3103_priv.h
index eee8c22c51ec507da592ecff92c9f2f574159dc9..651e005146b21546848ce324a386dfa0851e5499 100644
--- a/drivers/media/dvb-frontends/m88ds3103_priv.h
+++ b/drivers/media/dvb-frontends/m88ds3103_priv.h
@@ -46,7 +46,7 @@ struct m88ds3103_dev {
 	/* auto detect chip id to do different config */
 	u8 chip_id;
 	/* main mclk is calculated for M88RS6000 dynamically */
-	u32 mclk_khz;
+	s32 mclk_khz;
 	u64 post_bit_error;
 	u64 post_bit_count;
 };