Index: trunk/src/org/openstreetmap/josm/gui/preferences/plugin/PluginPreference.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/preferences/plugin/PluginPreference.java	(revision 16798)
+++ trunk/src/org/openstreetmap/josm/gui/preferences/plugin/PluginPreference.java	(revision 16799)
@@ -474,5 +474,5 @@
             putValue(NAME, tr("Configure sites..."));
             putValue(SHORT_DESCRIPTION, tr("Configure the list of sites where plugins are downloaded from"));
-            new ImageProvider("dialogs", "settings").getResource().attachImageIcon(this);
+            new ImageProvider("preference").getResource().attachImageIcon(this);
         }