diff --git a/konq-plugins/dirfilter/dirfilterplugin.cpp b/konq-plugins/dirfilter/dirfilterplugin.cpp
index 3e16bf4..dbf034f 100644
--- a/konq-plugins/dirfilter/dirfilterplugin.cpp
+++ b/konq-plugins/dirfilter/dirfilterplugin.cpp
@@ -145,7 +145,8 @@ DirFilterPlugin::DirFilterPlugin (QObject* parent, const char* name,
                                   const QStringList&)
                 :KParts::Plugin (parent, name),
                  m_pFilterMenu(0),
-                 m_searchWidget(0)
+                 m_searchWidget(0),
+                 m_oldFilterString("")
 {
   m_part = ::qt_cast<KonqDirPart*>(parent);
 
@@ -473,6 +474,14 @@ void DirFilterPlugin::slotItemRemoved (const KFileItem* item)
 
 void DirFilterPlugin::activateSearch()
 {
+	if (!m_searchWidget)
+		return;
+
+	if (m_oldFilterString == m_searchWidget->text())
+		return;
+
+	m_oldFilterString = m_searchWidget->text();
+
 	if ( ::qt_cast<KListView*>(m_part->scrollWidget()) ) {
 		static_cast<KListViewSearchLine*>(m_searchWidget)->updateSearch();
 	}
diff --git a/konq-plugins/dirfilter/dirfilterplugin.h b/konq-plugins/dirfilter/dirfilterplugin.h
index 74ad8e2..963d731 100644
--- a/konq-plugins/dirfilter/dirfilterplugin.h
+++ b/konq-plugins/dirfilter/dirfilterplugin.h
@@ -127,6 +127,7 @@ private:
   KonqDirPart* m_part;
   QTimer *m_refreshTimer;
   KActionMenu* m_pFilterMenu;
+  QString m_oldFilterString;
 
   KLineEdit *m_searchWidget;
   QMap<QString,MimeInfo> m_pMimeInfo;