Index: applications/editors/josm/plugins/wikipedia/src/org/wikipedia/WikipediaToggleDialog.java
===================================================================
--- applications/editors/josm/plugins/wikipedia/src/org/wikipedia/WikipediaToggleDialog.java	(revision 31916)
+++ applications/editors/josm/plugins/wikipedia/src/org/wikipedia/WikipediaToggleDialog.java	(revision 31917)
@@ -8,4 +8,5 @@
 import java.awt.event.MouseEvent;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -267,8 +268,10 @@
                 Tag tag = ((WikipediaEntry) list.getSelectedValue()).createWikipediaTag();
                 if (tag != null) {
+                    final Collection<OsmPrimitive> selected = Main.main.getCurrentDataSet().getSelected();
                     ChangePropertyCommand cmd = new ChangePropertyCommand(
-                            Main.main.getCurrentDataSet().getSelected(),
+                            selected,
                             tag.getKey(), tag.getValue());
                     Main.main.undoRedo.add(cmd);
+                    Main.worker.submit(new FetchWikidataAction.Fetcher(selected));
                 }
             }