diff --git a/libavcodec/g729postfilter.c b/libavcodec/g729postfilter.c
index 4f2f0c2c18..8cc29abbfa 100644
--- a/libavcodec/g729postfilter.c
+++ b/libavcodec/g729postfilter.c
@@ -511,7 +511,7 @@ static int16_t apply_tilt_comp(int16_t* out, int16_t* res_pst, int refl_coeff,
     return tmp;
 }
 
-void ff_g729_postfilter(DSPContext *dsp, int16_t* ht_prev_data, int16_t* voicing,
+void ff_g729_postfilter(DSPContext *dsp, int16_t* ht_prev_data, int* voicing,
                      const int16_t *lp_filter_coeffs, int pitch_delay_int,
                      int16_t* residual, int16_t* res_filter_data,
                      int16_t* pos_filter_data, int16_t *speech, int subframe_size)
diff --git a/libavcodec/g729postfilter.h b/libavcodec/g729postfilter.h
index 067eb5ded9..0ccecb2b92 100644
--- a/libavcodec/g729postfilter.h
+++ b/libavcodec/g729postfilter.h
@@ -93,7 +93,7 @@
  *   Short-term postfilter (4.2.2).
  *   Tilt-compensation (4.2.3)
  */
-void ff_g729_postfilter(DSPContext *dsp, int16_t* ht_prev_data, int16_t* voicing,
+void ff_g729_postfilter(DSPContext *dsp, int16_t* ht_prev_data, int* voicing,
                      const int16_t *lp_filter_coeffs, int pitch_delay_int,
                      int16_t* residual, int16_t* res_filter_data,
                      int16_t* pos_filter_data, int16_t *speech,