diff --git a/libavfilter/af_afade.c b/libavfilter/af_afade.c
index 1134849282..7f68327576 100644
--- a/libavfilter/af_afade.c
+++ b/libavfilter/af_afade.c
@@ -250,7 +250,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
         out_buf = ff_get_audio_buffer(inlink, nb_samples);
         if (!out_buf)
             return AVERROR(ENOMEM);
-        out_buf->pts = buf->pts;
+        av_frame_copy_props(out_buf, buf);
     }
 
     if ((!afade->type && (cur_sample + nb_samples < afade->start_sample)) ||
diff --git a/libavfilter/af_biquads.c b/libavfilter/af_biquads.c
index a3acd041c7..2db0e02f35 100644
--- a/libavfilter/af_biquads.c
+++ b/libavfilter/af_biquads.c
@@ -406,7 +406,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
         out_buf = ff_get_audio_buffer(inlink, nb_samples);
         if (!out_buf)
             return AVERROR(ENOMEM);
-        out_buf->pts = buf->pts;
+        av_frame_copy_props(out_buf, buf);
     }
 
     for (ch = 0; ch < av_frame_get_channels(buf); ch++)