diff --git a/flutter_osm_web/lib/src/asset/map.html b/flutter_osm_web/lib/src/asset/map.html
index 6e79fc34..35aa2d0e 100644
--- a/flutter_osm_web/lib/src/asset/map.html
+++ b/flutter_osm_web/lib/src/asset/map.html
@@ -249,9 +249,9 @@
       if (iconMarker != "") {
         argsIcon["iconUrl"] = "data:image/png;base64," + iconMarker
       }
-      if (anchor != undefined && (anchor.x<=1 && anchor.y<=1)) {
+      if (anchor != undefined && (anchor.x <= 1 && anchor.y <= 1)) {
         var anchorX = anchor.x * iconSize.width
-        var anchorY = anchor.y * iconSize.height
+        var anchorY = anchor.y * (iconSize.height - 1)
         if(anchor.offset != undefined){
           var offsetX = -anchor.offset.x
           var offsetY = anchor.offset.y
@@ -265,6 +265,8 @@
           anchorY += (offsetY) 
         }
         argsIcon["iconAnchor"] = [anchorX,anchorY]
+      }else {
+        argsIcon["iconAnchor"] = [anchor.x,anchor.y]
       }
 
       var args = {
@@ -320,11 +322,14 @@
                   x:iconMarker.options.iconAnchor[0],
                   y:iconMarker.options.iconAnchor[1]
                 };
+                console.log(iconAnchor)
+                console.log("anchor param: "+anchor)
               }
-              if((anchor != undefined && anchor != null) && anchor!=iconAnchor) {
+              if((anchor != undefined && anchor != null) && anchor != iconAnchor) {
                 iconAnchor = anchor;
               }
               mainLayers.get("markers").removeLayer(layer);
+              console.log(iconAnchor)
               addMarker(point,_iconSize,iconMarkerURL,angleMarker,iconAnchor)
               return this;
             }
diff --git a/flutter_osm_web/lib/src/controller/web_osm_controller.dart b/flutter_osm_web/lib/src/controller/web_osm_controller.dart
index 56d6f852..f0f4dc63 100644
--- a/flutter_osm_web/lib/src/controller/web_osm_controller.dart
+++ b/flutter_osm_web/lib/src/controller/web_osm_controller.dart
@@ -321,7 +321,7 @@ final class WebOsmController with WebMixin implements IBaseOSMController {
         newLocation.toGeoJS(),
         icon,
         iconSize,
-        angle != null ? (angle * (180 / pi)) : 0,
+        angle != null ? (angle * (180 / pi)) : null,
         iconAnchor?.toAnchorJS,
       );
     });