diff --git a/libavfilter/vf_fieldhint.c b/libavfilter/vf_fieldhint.c
index 739c1bfa45..2b845e7330 100644
--- a/libavfilter/vf_fieldhint.c
+++ b/libavfilter/vf_fieldhint.c
@@ -174,8 +174,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
 
     switch (s->mode) {
     case 0:
-        top    = s->frame[1 + tf - outlink->frame_count];
-        bottom = s->frame[1 + bf - outlink->frame_count];
+        top    = s->frame[tf - outlink->frame_count + 1];
+        bottom = s->frame[bf - outlink->frame_count + 1];
         break;
     case 1:
         top    = s->frame[1 + tf];