diff --git a/pcbnew/router/router_preview_item.h b/pcbnew/router/router_preview_item.h
index 367a48cc2e..a623393307 100644
--- a/pcbnew/router/router_preview_item.h
+++ b/pcbnew/router/router_preview_item.h
@@ -73,7 +73,7 @@ public:
      * GAL layer stack into the space of one view group sublayer (which is
      * currently hard-coded via GAL::AdvanceDepth take a depth of 0.1)
      */
-    static constexpr double LayerDepthFactor = 0.0001;
+    static constexpr double LayerDepthFactor = 0.001;
     static constexpr double PathOverlayDepth = LayerDepthFactor * static_cast<double>( LAYER_ZONE_END );
 
     ROUTER_PREVIEW_ITEM( const SHAPE& aShape, PNS::ROUTER_IFACE* aIface, KIGFX::VIEW* aView );