Index: applications/editors/josm/plugins/seachart/build.xml
===================================================================
--- applications/editors/josm/plugins/seachart/build.xml	(revision 33219)
+++ applications/editors/josm/plugins/seachart/build.xml	(revision 33220)
@@ -4,5 +4,5 @@
     <property name="commit.message" value="[Seachart] Publish new release"/>
     <!-- enter the *lowest* JOSM version this plugin is currently compatible with -->
-    <property name="plugin.main.version" value="10580"/>
+    <property name="plugin.main.version" value="11858"/>
 
     <property name="plugin.author" value="Malcolm Herring"/>
Index: applications/editors/josm/plugins/seachart/src/seachart/ChartImage.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/seachart/ChartImage.java	(revision 33219)
+++ applications/editors/josm/plugins/seachart/src/seachart/ChartImage.java	(revision 33220)
@@ -8,4 +8,6 @@
 import java.awt.geom.Point2D;
 import java.awt.geom.Point2D.Double;
+import java.util.Collection;
+import java.util.Collections;
 
 import javax.swing.Action;
@@ -148,3 +150,8 @@
         return RuleSet.ALL;
     }
+
+    @Override
+    public Collection<String> getNativeProjections() {
+        return Collections.singletonList("EPSG:3857");
+    }
 }