diff --git a/libavresample/utils.c b/libavresample/utils.c
index 551a7e075e..3a335c0587 100644
--- a/libavresample/utils.c
+++ b/libavresample/utils.c
@@ -189,7 +189,7 @@ int avresample_open(AVAudioResampleContext *avr)
     }
     if (avr->resample_needed) {
         avr->resample_out_buffer = ff_audio_data_alloc(avr->out_channels,
-                                                       0, avr->internal_sample_fmt,
+                                                       1024, avr->internal_sample_fmt,
                                                        "resample_out_buffer");
         if (!avr->resample_out_buffer) {
             ret = AVERROR(EINVAL);