diff --git a/libswscale/graph.c b/libswscale/graph.c
index 2337016111..ed5e8038b1 100644
--- a/libswscale/graph.c
+++ b/libswscale/graph.c
@@ -431,6 +431,9 @@ static int add_legacy_sws_pass(SwsGraph *graph, SwsFormat src, SwsFormat dst,
     legacy_chr_pos(graph, &sws->dst_h_chr_pos, ctx->dst_h_chr_pos, &warned);
     legacy_chr_pos(graph, &sws->dst_v_chr_pos, ctx->dst_v_chr_pos, &warned);
 
+    sws->scaler_params[0] = ctx->scaler_params[0];
+    sws->scaler_params[1] = ctx->scaler_params[1];
+
     ret = sws_init_context(sws, NULL, NULL);
     if (ret < 0) {
         sws_free_context(&sws);