diff --git a/drivers/media/dvb/frontends/dib0070.h b/drivers/media/dvb/frontends/dib0070.h
index 21f2c5161af4887c2a8e7ff9dc7b4c98762f01f7..9670f5d20cfbf9bc7a8578a69bf2ab6bacfcd7c3 100644
--- a/drivers/media/dvb/frontends/dib0070.h
+++ b/drivers/media/dvb/frontends/dib0070.h
@@ -58,6 +58,4 @@ static inline u16 dib0070_wbd_offset(struct dvb_frontend *fe)
 }
 #endif
 
-extern void dib0070_ctrl_agc_filter(struct dvb_frontend *, uint8_t open);
-
 #endif