diff --git a/part/bookmarklist.cpp b/part/bookmarklist.cpp
index c1ea6991f..22d6e70f6 100644
--- a/part/bookmarklist.cpp
+++ b/part/bookmarklist.cpp
@@ -127,7 +127,7 @@ BookmarkList::BookmarkList(Okular::Document *document, QWidget *parent)
     mainlay->setSpacing(6);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Bookmarks"));
     mainlay->addWidget(titleWidget);
     mainlay->setAlignment(titleWidget, Qt::AlignHCenter);
diff --git a/part/layers.cpp b/part/layers.cpp
index a5bb06c1f..bac53cae0 100644
--- a/part/layers.cpp
+++ b/part/layers.cpp
@@ -31,7 +31,7 @@ Layers::Layers(QWidget *parent, Okular::Document *document)
     m_document->addObserver(this);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Layers"));
     mainlay->addWidget(titleWidget);
     mainlay->setAlignment(titleWidget, Qt::AlignHCenter);
diff --git a/part/side_reviews.cpp b/part/side_reviews.cpp
index 78aa8c2ec..7d88c8f63 100644
--- a/part/side_reviews.cpp
+++ b/part/side_reviews.cpp
@@ -94,7 +94,7 @@ Reviews::Reviews(QWidget *parent, Okular::Document *document)
     vLayout->setSpacing(6);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Annotations"));
 
     m_view = new TreeView(m_document, this);
diff --git a/part/signaturepanel.cpp b/part/signaturepanel.cpp
index f2a7cd2fa..e1a8d6aa0 100644
--- a/part/signaturepanel.cpp
+++ b/part/signaturepanel.cpp
@@ -43,7 +43,7 @@ SignaturePanel::SignaturePanel(Okular::Document *document, QWidget *parent)
     Q_D(SignaturePanel);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Signatures"));
 
     d->m_view = new QTreeView(this);
diff --git a/part/thumbnaillist.cpp b/part/thumbnaillist.cpp
index 3e8460010..ad7bf885a 100644
--- a/part/thumbnaillist.cpp
+++ b/part/thumbnaillist.cpp
@@ -44,7 +44,7 @@ ThumbnailsBox::ThumbnailsBox(QWidget *parent)
     vbox->setSpacing(0);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Thumbnails"));
     vbox->addWidget(titleWidget);
     vbox->setAlignment(titleWidget, Qt::AlignHCenter);
diff --git a/part/toc.cpp b/part/toc.cpp
index de88e0a9f..6d9d43732 100644
--- a/part/toc.cpp
+++ b/part/toc.cpp
@@ -34,7 +34,7 @@ TOC::TOC(QWidget *parent, Okular::Document *document)
     mainlay->setSpacing(6);
 
     KTitleWidget *titleWidget = new KTitleWidget(this);
-    titleWidget->setLevel(2);
+    titleWidget->setLevel(4);
     titleWidget->setText(i18n("Contents"));
     mainlay->addWidget(titleWidget);
     mainlay->setAlignment(titleWidget, Qt::AlignHCenter);