diff --git a/src/core/Config.cpp b/src/core/Config.cpp
index a3dabb96b..d89077a1a 100644
--- a/src/core/Config.cpp
+++ b/src/core/Config.cpp
@@ -81,7 +81,6 @@ Config::Config(QObject* parent)
 
 Config::~Config()
 {
-    ;
 }
 
 void Config::init(const QString& fileName)
diff --git a/src/core/Config.h b/src/core/Config.h
index 0041e673e..0ebaeeb1b 100644
--- a/src/core/Config.h
+++ b/src/core/Config.h
@@ -38,7 +38,7 @@ public:
 
 private:
     Config(const QString& fileName, QObject* parent);
-    Config(QObject* parent);
+    explicit Config(QObject* parent);
     void init(const QString& fileName);
 
     static Config* m_instance;
diff --git a/src/gui/DatabaseTabWidget.h b/src/gui/DatabaseTabWidget.h
index 4ecd0aa94..1749bcee3 100644
--- a/src/gui/DatabaseTabWidget.h
+++ b/src/gui/DatabaseTabWidget.h
@@ -109,8 +109,6 @@ private:
     QHash<Database*, DatabaseManagerStruct> m_dbList;
     DatabaseManagerStruct m_curDbStruct;
     DatabaseOpenDialog* m_curKeyDialog;
-
-
 };
 
 #endif // KEEPASSX_DATABASETABWIDGET_H
diff --git a/src/gui/WelcomeWidget.h b/src/gui/WelcomeWidget.h
index b7daff033..09bbc8fbc 100644
--- a/src/gui/WelcomeWidget.h
+++ b/src/gui/WelcomeWidget.h
@@ -27,7 +27,7 @@ namespace Ui {
 class WelcomeWidget : public QWidget
 {
     Q_OBJECT
-    
+
 public:
     explicit WelcomeWidget(QWidget* parent = 0);
     ~WelcomeWidget();