Index: /applications/editors/josm/plugins/imagery_offset_db/src/iodb/ImageryOffsetTools.java
===================================================================
--- /applications/editors/josm/plugins/imagery_offset_db/src/iodb/ImageryOffsetTools.java	(revision 30217)
+++ /applications/editors/josm/plugins/imagery_offset_db/src/iodb/ImageryOffsetTools.java	(revision 30218)
@@ -32,5 +32,6 @@
         List<ImageryLayer> layers = Main.map.mapView.getLayersOfType(ImageryLayer.class);
         for( ImageryLayer layer : layers ) {
-            if( layer.isVisible() ) {
+            String url = layer.getInfo().getUrl();
+            if( layer.isVisible() && url != null && !url.contains("gps-") ) {
                 return layer;
             }