diff --git a/drivers/media/dvb/frontends/stb0899_drv.c b/drivers/media/dvb/frontends/stb0899_drv.c
index 0b2a908..862b086 100644
--- a/drivers/media/dvb/frontends/stb0899_drv.c
+++ b/drivers/media/dvb/frontends/stb0899_drv.c
@@ -550,7 +550,7 @@
  */
 static u32 stb0899_get_mclk(struct stb0899_state *state)
 {
-	u32 mclk = 90000000, div = 0;
+	u32 mclk = 0, div = 0;
 
 	div = stb0899_read_reg(state, STB0899_NCOARSE);
 	mclk = (div + 1) * state->config->xtal_freq / 6;