diff --git a/mapsense.js b/mapsense.js
index 7ed53fd..78db79b 100644
--- a/mapsense.js
+++ b/mapsense.js
@@ -1232,7 +1232,8 @@ ms.geoJson = function(fetch) {
       pointRadius = 4.5,
       features,
       tileBackground = false,
-      selection;
+      selection,
+      zoomWhenLoaded;
 
   container.setAttribute("fill-rule", "evenodd");
   clipPath.setAttribute("id", clipId);
@@ -1381,6 +1382,11 @@ ms.geoJson = function(fetch) {
     if (scale == "fixed") {
       initialScale = "scale(" + Math.pow(2, tile.zoom - (tile.scale = geoJson.map().zoom())) + ")";
     }
+    else if (scale == "relative") {
+      if (typeof zoomWhenLoaded == 'undefined') zoomWhenLoaded = tile.zoom;
+      tile.scale = geoJson.map().zoom();
+      initialScale = "scale(" + Math.pow(.5, zoomWhenLoaded - tile.zoom)  + ")";
+    }
 
     var pointUpdate = d3.select(g)
       .selectAll("circle")
diff --git a/src/GeoJson.js b/src/GeoJson.js
index 391ddef..cc6dc76 100644
--- a/src/GeoJson.js
+++ b/src/GeoJson.js
@@ -12,7 +12,8 @@ ms.geoJson = function(fetch) {
       pointRadius = 4.5,
       features,
       tileBackground = false,
-      selection;
+      selection,
+      zoomWhenLoaded;
 
   container.setAttribute("fill-rule", "evenodd");
   clipPath.setAttribute("id", clipId);
@@ -161,6 +162,11 @@ ms.geoJson = function(fetch) {
     if (scale == "fixed") {
       initialScale = "scale(" + Math.pow(2, tile.zoom - (tile.scale = geoJson.map().zoom())) + ")";
     }
+    else if (scale == "relative") {
+      if (typeof zoomWhenLoaded == 'undefined') zoomWhenLoaded = tile.zoom;
+      tile.scale = geoJson.map().zoom();
+      initialScale = "scale(" + Math.pow(.5, zoomWhenLoaded - tile.zoom)  + ")";
+    }
 
     var pointUpdate = d3.select(g)
       .selectAll("circle")