diff --git a/core/src/style/polylineStyle.cpp b/core/src/style/polylineStyle.cpp
index 9bb3a2bb..cd155c4f 100644
--- a/core/src/style/polylineStyle.cpp
+++ b/core/src/style/polylineStyle.cpp
@@ -238,13 +238,13 @@ void PolylineStyleBuilder<V>::setup(const Marker& marker, int zoom) {

     m_zoom = zoom;
     m_overzoom2 = 1.f;
-    m_tileUnitsPerMeter = 1.f / marker.extent();
+    m_tileUnitsPerMeter = 1.f / marker.modelScale();
     float metersPerTile = MapProjection::metersPerTileAtZoom(zoom);

     // In general, a Marker won't cover the same area as a tile, so the effective
     // "tile size" for building a Marker is the size of a tile in pixels multiplied
     // by the ratio of the Marker's extent to the length of a tile side at this zoom.
-    m_tileUnitsPerPixel = metersPerTile / (marker.extent() * 256.f);
+    m_tileUnitsPerPixel = metersPerTile / (marker.modelScale() * 256.f);

 }