diff --git a/libavformat/gxfenc.c b/libavformat/gxfenc.c
index 5fff2af058..78e1a1cbdd 100644
--- a/libavformat/gxfenc.c
+++ b/libavformat/gxfenc.c
@@ -365,7 +365,7 @@ static int gxf_write_flt_packet(AVFormatContext *s)
     ByteIOContext *pb = s->pb;
     int64_t pos = url_ftell(pb);
     int fields_per_flt = (gxf->nb_fields+1) / 1000 + 1;
-    int flt_entries = gxf->nb_fields / fields_per_flt - 1;
+    int flt_entries = gxf->nb_fields / fields_per_flt;
     int i = 0;
 
     gxf_write_packet_header(pb, PKT_FLT);