diff --git a/libavfilter/f_bench.c b/libavfilter/f_bench.c
index 9898e94c76..2546adc281 100644
--- a/libavfilter/f_bench.c
+++ b/libavfilter/f_bench.c
@@ -80,7 +80,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
             s->n++;
             s->min = FFMIN(s->min, diff);
             s->max = FFMAX(s->max, diff);
-            av_log(s, AV_LOG_INFO, "t:%f avg:%f max:%f min:%f\n",
+            av_log(ctx, AV_LOG_INFO, "t:%f avg:%f max:%f min:%f\n",
                    T2F(diff), T2F(s->sum / s->n), T2F(s->max), T2F(s->min));
         }
         av_dict_set(&in->metadata, START_TIME_KEY, NULL, 0);