diff --git a/src/librssguard/core/message.cpp b/src/librssguard/core/message.cpp
index 882f1a89d..b8a4282de 100644
--- a/src/librssguard/core/message.cpp
+++ b/src/librssguard/core/message.cpp
@@ -220,3 +220,9 @@ MessageCategory::MessageCategory(const MessageCategory& other) {
 QString MessageCategory::title() const {
   return m_title;
 }
+
+MessageCategory& MessageCategory::operator=(const MessageCategory& other) {
+  m_title = other.m_title;
+
+  return *this;
+}
diff --git a/src/librssguard/core/message.h b/src/librssguard/core/message.h
index b29d2755e..d0fb304d3 100644
--- a/src/librssguard/core/message.h
+++ b/src/librssguard/core/message.h
@@ -43,6 +43,8 @@ class RSSGUARD_DLLSPEC MessageCategory : public QObject {
 
     QString title() const;
 
+    MessageCategory& operator=(const MessageCategory& other);
+
   private:
     QString m_title;
 };
diff --git a/src/librssguard/database/sqlitedriver.cpp b/src/librssguard/database/sqlitedriver.cpp
index 241be8b38..8e77f3e60 100644
--- a/src/librssguard/database/sqlitedriver.cpp
+++ b/src/librssguard/database/sqlitedriver.cpp
@@ -249,7 +249,7 @@ QSqlDatabase SqliteDriver::initializeDatabase(const QString& connection_name, bo
 
       if (installed_db_schema < QSL(APP_DB_SCHEMA_VERSION).toInt()) {
         // Now, it would be good to create backup of SQLite DB file.
-        if (IOFactory::copyFile(databaseFilePath(), databaseFilePath() + ".bak")) {
+        if (IOFactory::copyFile(databaseFilePath(), databaseFilePath() + QSL("-v%1.bak").arg(installed_db_schema))) {
           qDebugNN << LOGSEC_DB << "Creating backup of SQLite DB file.";
         }
         else {