diff --git a/src/bookmarks.cpp b/src/bookmarks.cpp
index 505d272..f13cdbc 100644
--- a/src/bookmarks.cpp
+++ b/src/bookmarks.cpp
@@ -21,9 +21,9 @@ using std::chrono::system_clock;
 using std::chrono::duration_cast;
 using std::chrono::seconds;
 
-void export_bookmarks(const vector<Database::entry> &entries, ostream &out)
+void Export::Bookmarks::print() const
 {
-    out << "<!DOCTYPE NETSCAPE-Bookmark-file-1>\n"
+    _out << "<!DOCTYPE NETSCAPE-Bookmark-file-1>\n"
         "<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; "
         "charset=UTF-8\">\n"
         "<TITLE>Bookmarks from remwharead</TITLE>\n"
@@ -31,22 +31,23 @@ void export_bookmarks(const vector<Database::entry> &entries, ostream &out)
         "<DL><p>\n"
         "<DT><H3>remwharead</H3>\n"
         "<DL><p>\n";
-        for (const Database::entry & entry : entries)
-        {
-            string title = entry.title;
-            if (title.empty())
-            {
-                title = entry.uri;
-            }
-            system_clock::time_point tp = entry.datetime;
-            system_clock::duration duration = tp.time_since_epoch();
-            string time_seconds =
-                std::to_string(duration_cast<seconds>(duration).count());
 
-            out << "<DT><A HREF=\"" << entry.uri << "\" "
-                << "ADD_DATE=\"" << time_seconds << "\">"
-                << title << "</A>\n";
+    for (const Database::entry & entry : _entries)
+    {
+        string title = entry.title;
+        if (title.empty())
+        {
+            title = entry.uri;
         }
-        out << "</DL><p>\n"
-            << "</DL><p>\n";
+        system_clock::time_point tp = entry.datetime;
+        system_clock::duration duration = tp.time_since_epoch();
+        string time_seconds =
+            std::to_string(duration_cast<seconds>(duration).count());
+
+        _out << "<DT><A HREF=\"" << entry.uri << "\" "
+             << "ADD_DATE=\"" << time_seconds << "\">"
+             << title << "</A>\n";
+    }
+    _out << "</DL><p>\n"
+         << "</DL><p>\n";
 }
diff --git a/src/export.hpp b/src/export.hpp
index 5a081c6..654439b 100644
--- a/src/export.hpp
+++ b/src/export.hpp
@@ -35,6 +35,8 @@ namespace Export
         explicit ExportBase(const vector<Database::entry> &entries,
                             ostream &out = cout);
 
+        virtual void print() const = 0;
+
     protected:
         const vector<Database::entry> &_entries;
         ostream &_out;
@@ -45,19 +47,20 @@ namespace Export
     public:
         using ExportBase::ExportBase;
 
-        void print() const;
+        virtual void print() const override;
 
     private:
         //! replaces " with "".
         const string quote(string field) const;
     };
 
+
     class AsciiDoc : protected ExportBase
     {
     public:
         using ExportBase::ExportBase;
 
-        void print() const;
+        void print() const override;
 
     private:
         using tagmap = std::map<string,vector<Database::entry>>;
@@ -72,12 +75,14 @@ namespace Export
         const string get_day(const Database::entry &entry) const;
         const string get_time(const Database::entry &entry) const;
     };
+
+    //! Export as Netscape bookmark file.
+    class Bookmarks : protected ExportBase
+    {
+    public:
+        using ExportBase::ExportBase;
+        virtual void print() const override;
+    };
 }
 
-
-
-//! Export as Netscape bookmark file.
-void export_bookmarks(const vector<Database::entry> &entries,
-                      ostream &out = cout);
-
 #endif  // REMWHAREAD_EXPORT_HPP
diff --git a/src/main.cpp b/src/main.cpp
index ddd9a46..c21581a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -124,12 +124,12 @@ int main(const int argc, const char *argv[])
         {
             if (file.is_open())
             {
-                export_bookmarks(entries, file);
+                Export::Bookmarks(entries, file).print();
                 file.close();
             }
             else
             {
-                export_bookmarks(entries);
+                Export::Bookmarks(entries).print();
             }
             break;
         }
diff --git a/tests/test_bookmarks.cpp b/tests/test_bookmarks.cpp
index a12039f..4dff41e 100644
--- a/tests/test_bookmarks.cpp
+++ b/tests/test_bookmarks.cpp
@@ -46,7 +46,7 @@ SCENARIO ("The Bookmarks export works correctly")
         try
         {
             std::ostringstream output;
-            export_bookmarks({ entry }, output);
+            Export::Bookmarks({ entry }, output).print();
             const string bookmarks = output.str();
 
             const regex re_top(