diff --git a/src/rss/automatedrssdownloader.cpp b/src/rss/automatedrssdownloader.cpp
index 458856d54..c8cfb27a5 100644
--- a/src/rss/automatedrssdownloader.cpp
+++ b/src/rss/automatedrssdownloader.cpp
@@ -62,18 +62,26 @@ AutomatedRssDownloader::AutomatedRssDownloader(QWidget *parent) :
   ui->hsplitter->setCollapsible(0, false);
   ui->hsplitter->setCollapsible(1, false);
   ui->hsplitter->setCollapsible(2, true); // Only the preview list is collapsible
-
-  connect(ui->listRules, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(displayRulesListMenu(const QPoint&)));
+  bool ok; Q_UNUSED(ok);
+  ok = connect(ui->checkRegex, SIGNAL(toggled(bool)), SLOT(updateFieldsToolTips(bool)));
+  Q_ASSERT(ok);
+  ok = connect(ui->listRules, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(displayRulesListMenu(const QPoint&)));
+  Q_ASSERT(ok);
   m_ruleList = RssDownloadRuleList::instance();
   initLabelCombobox();
   loadFeedList();
   loadSettings();
-  connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateRuleDefinitionBox()));
-  connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateFeedList()));
-  connect(ui->listFeeds, SIGNAL(itemChanged(QListWidgetItem*)), SLOT(handleFeedCheckStateChange(QListWidgetItem*)));
+  ok = connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateRuleDefinitionBox()));
+  Q_ASSERT(ok);
+  ok = connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateFeedList()));
+  Q_ASSERT(ok);
+  ok = connect(ui->listFeeds, SIGNAL(itemChanged(QListWidgetItem*)), SLOT(handleFeedCheckStateChange(QListWidgetItem*)));
+  Q_ASSERT(ok);
   // Update matching articles when necessary
-  connect(ui->lineContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
-  connect(ui->lineNotContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
+  ok = connect(ui->lineContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
+  Q_ASSERT(ok);
+  ok = connect(ui->lineNotContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
+  Q_ASSERT(ok);
   updateRuleDefinitionBox();
   updateFeedList();
 }
@@ -209,6 +217,7 @@ void AutomatedRssDownloader::updateRuleDefinitionBox()
       clearRuleDefinitionBox();
       ui->lineContains->setText(selection.first()->text());
     }
+    updateFieldsToolTips(ui->checkRegex->isChecked());
     // Enable
     ui->ruleDefBox->setEnabled(true);
   } else {
@@ -227,6 +236,7 @@ void AutomatedRssDownloader::clearRuleDefinitionBox()
   ui->lineSavePath->clear();
   ui->comboLabel->clearEditText();
   ui->checkRegex->setChecked(false);
+  updateFieldsToolTips(ui->checkRegex->isChecked());
 }
 
 RssDownloadRule AutomatedRssDownloader::getCurrentRule() const
@@ -496,4 +506,16 @@ void AutomatedRssDownloader::addFeedArticlesToTree(const RssFeed *feed, const QS
   ui->treeMatchingArticles->expandItem(treeFeedItem);
 }
 
+void AutomatedRssDownloader::updateFieldsToolTips(bool regex)
+{
+  QString tip;
+  if(regex) {
+    tip = tr("Regex mode: use Perl-like regular expressions");
+  } else {
+    tip = tr("Wildcard mode: you can use:\n ? to match any single character.\n * to match zero or more of any characters.\n Whitespaces count as AND operators.");
+  }
+  ui->lineContains->setToolTip(tip);
+  ui->lineNotContains->setToolTip(tip);
+}
+
 
diff --git a/src/rss/automatedrssdownloader.h b/src/rss/automatedrssdownloader.h
index 86e434701..90db2abc2 100644
--- a/src/rss/automatedrssdownloader.h
+++ b/src/rss/automatedrssdownloader.h
@@ -75,6 +75,7 @@ private slots:
   void on_importBtn_clicked();
   void renameSelectedRule();
   void updateMatchingArticles();
+  void updateFieldsToolTips(bool regex);
 
 private:
   RssDownloadRule getCurrentRule() const;