diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index 1f97c37fe9a68ba6a3b155ad8337b5eaa3c52e8f..d8f4200065ee0d36688da05edfc02ec133dc43dc 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -325,12 +325,12 @@ static int dst_set_polarization(struct dst_state *state)
 	switch (state->voltage) {
 		case SEC_VOLTAGE_13:	// vertical
 			printk("%s: Polarization=[Vertical]\n", __FUNCTION__);
-			state->tx_tuna[8] |= 0x40;  //1
+			state->tx_tuna[8] &= ~0x40;  //1
 			break;
 
 		case SEC_VOLTAGE_18:	// horizontal
 			printk("%s: Polarization=[Horizontal]\n", __FUNCTION__);
-			state->tx_tuna[8] =~ 0x40;  // 0
+			state->tx_tuna[8] |= 0x40;  // 0
 			break;
 
 		case SEC_VOLTAGE_OFF: