diff --git a/libavfilter/af_afftdn.c b/libavfilter/af_afftdn.c
index 77a0ae12cb..d1dbbc667b 100644
--- a/libavfilter/af_afftdn.c
+++ b/libavfilter/af_afftdn.c
@@ -1347,23 +1347,6 @@ static av_cold void uninit(AVFilterContext *ctx)
     av_audio_fifo_free(s->fifo);
 }
 
-static int query_formats(AVFilterContext *ctx)
-{
-    static const enum AVSampleFormat sample_fmts[] = {
-        AV_SAMPLE_FMT_FLTP,
-        AV_SAMPLE_FMT_NONE
-    };
-    int ret = ff_set_common_formats_from_list(ctx, sample_fmts);
-    if (ret < 0)
-        return ret;
-
-    ret = ff_set_common_all_channel_counts(ctx);
-    if (ret < 0)
-        return ret;
-
-    return ff_set_common_all_samplerates(ctx);
-}
-
 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
                            char *res, int res_len, int flags)
 {
@@ -1418,7 +1401,7 @@ const AVFilter ff_af_afftdn = {
     .uninit          = uninit,
     FILTER_INPUTS(inputs),
     FILTER_OUTPUTS(outputs),
-    FILTER_QUERY_FUNC(query_formats),
+    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_FLTP),
     .process_command = process_command,
     .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                        AVFILTER_FLAG_SLICE_THREADS,