diff --git a/video/filter/vf_vapoursynth.c b/video/filter/vf_vapoursynth.c
index 0b798c8daf..a32772f86e 100644
--- a/video/filter/vf_vapoursynth.c
+++ b/video/filter/vf_vapoursynth.c
@@ -193,8 +193,9 @@ static void copy_mp_to_vs_frame_props_map(struct priv *p, VSMap *map,
     p->vsapi->propSetInt(map, "_ColorSpace",
             pl_system_to_av(params->repr.sys), 0);
     if (params->chroma_location) {
+        // 0=left, 1=center, 2=topleft, 3=top, 4=bottomleft, 5=bottom.
         p->vsapi->propSetInt(map, "_ChromaLocation",
-                params->chroma_location == PL_CHROMA_CENTER, 0);
+                params->chroma_location - 1, 0);
     }
     char pict_type = 0;
     switch (img->pict_type) {