diff --git a/libavfilter/af_ladspa.c b/libavfilter/af_ladspa.c
index 1c3ede2ee2..fc93d56af7 100644
--- a/libavfilter/af_ladspa.c
+++ b/libavfilter/af_ladspa.c
@@ -231,7 +231,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
 
         new_out_samples -= trim;
         s->in_trim -= trim;
-        out->nb_samples = new_out_samples;
     }
 
     if (new_out_samples <= 0) {