diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index c59ac6b0ea..3329c12346 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -337,10 +337,10 @@ static int config_props(AVFilterLink *outlink)
         }
     }
 
-    if (inlink->sample_aspect_ratio.num){
-        outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
+    if (inlink0->sample_aspect_ratio.num){
+        outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink0->w, outlink->w * inlink0->h}, inlink0->sample_aspect_ratio);
     } else
-        outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
+        outlink->sample_aspect_ratio = inlink0->sample_aspect_ratio;
 
     av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d flags:0x%0x\n",
            inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
diff --git a/tests/ref/fate/filter-scale2ref_keep_aspect b/tests/ref/fate/filter-scale2ref_keep_aspect
index ca03277446..8dd0dbb13b 100644
--- a/tests/ref/fate/filter-scale2ref_keep_aspect
+++ b/tests/ref/fate/filter-scale2ref_keep_aspect
@@ -5,7 +5,7 @@
 #media_type 0: video
 #codec_id 0: rawvideo
 #dimensions 0: 160x120
-#sar 0: 4/3
+#sar 0: 1/1
 #stream#, dts,        pts, duration,     size, hash
 0,          0,          0,        1,    57600, 9a19c23dc3a557786840d0098606d5f1
 0,          1,          1,        1,    57600, e6fbdabaf1bb0d28afc648ed4d27e9f0