Index: trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 2345)
+++ trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 2346)
@@ -138,4 +138,6 @@
         pnl.add(btnDownload = new SideButton(actDownload = new DownloadAction()));
         btnDownload.setFocusable(true);
+        btnDownload.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,0), "download");
+        btnDownload.getActionMap().put("download",actDownload);
         pnl.add(new SideButton(new CancelAction()));
         pnl.add(new SideButton(new ContextSensitiveHelpAction(ht("/Dialog/DownloadDialog"))));