diff --git a/src/PreferencesDialog.cpp b/src/PreferencesDialog.cpp
index 75563110..583c8f56 100644
--- a/src/PreferencesDialog.cpp
+++ b/src/PreferencesDialog.cpp
@@ -29,6 +29,9 @@ PreferencesDialog::PreferencesDialog(QWidget* parent)
     ui->fr_null_bg->installEventFilter(this);
     ui->fr_null_fg->installEventFilter(this);
 
+    connect(ui->comboDataBrowserFont, SIGNAL(currentIndexChanged(int)), this, SLOT(updatePreviewFont()));
+    connect(ui->spinDataBrowserFontSize, SIGNAL(valueChanged(int)), this, SLOT(updatePreviewFont()));
+
 #ifndef CHECKNEWVERSION
     ui->labelUpdates->setVisible(false);
     ui->checkUpdates->setVisible(false);
@@ -546,3 +549,13 @@ void PreferencesDialog::chooseRemoteCloneDirectory()
     if(!s.isEmpty())
         ui->editRemoteCloneDirectory->setText(s);
 }
+
+void PreferencesDialog::updatePreviewFont()
+{
+    QFont textFont(ui->comboDataBrowserFont->currentText());
+    textFont.setPointSize(ui->spinDataBrowserFontSize->value());
+    ui->txtRegular->setFont(textFont);
+    textFont.setItalic(true);
+    ui->txtNull->setFont(textFont);
+    ui->txtBlob->setFont(textFont);
+}
diff --git a/src/PreferencesDialog.h b/src/PreferencesDialog.h
index 50c501d4..94b32eb2 100644
--- a/src/PreferencesDialog.h
+++ b/src/PreferencesDialog.h
@@ -34,6 +34,7 @@ private slots:
     virtual void addClientCertificate();
     virtual void removeClientCertificate();
     void chooseRemoteCloneDirectory();
+    void updatePreviewFont();
 
 private:
     Ui::PreferencesDialog *ui;