diff --git a/dic/stacktrace.cpp b/dic/stacktrace.cpp
index 6c95772..4c73745 100644
--- a/dic/stacktrace.cpp
+++ b/dic/stacktrace.cpp
@@ -54,6 +54,7 @@ string StackTrace::GetStack()
     {
         oss << "    at " << Demangle(symbols[i]) << endl;
     }
+    free (symbols);
 
     return oss.str();
 #else
diff --git a/qt/main_window.cpp b/qt/main_window.cpp
index 4d85a16..5a0f0a5 100644
--- a/qt/main_window.cpp
+++ b/qt/main_window.cpp
@@ -118,13 +118,13 @@ MainWindow::MainWindow(QWidget *iParent)
     // Status bar
     statusBar()->addWidget(new QLabel, 1);
     // First widget, not added yet
-    m_lettersLabel = new QLabel;
+    m_lettersLabel = new QLabel(statusBar());
     m_lettersLabel->setFrameStyle(QFrame::Sunken | QFrame::Panel);
     // Second widget, not added yet
-    m_turnLabel = new QLabel;
+    m_turnLabel = new QLabel(statusBar());
     m_turnLabel->setFrameStyle(QFrame::Sunken | QFrame::Panel);
     // Third widget
-    m_dicNameLabel = new QLabel;
+    m_dicNameLabel = new QLabel(this);
     m_dicNameLabel->setFrameStyle(QFrame::Sunken | QFrame::Panel);
     statusBar()->addPermanentWidget(m_dicNameLabel);
     QObject::connect(this, SIGNAL(dicChanged(const Dictionary*)),
@@ -202,6 +202,10 @@ MainWindow::~MainWindow()
     delete m_game;
     delete m_dic;
     delete m_timerModel;
+
+    // Destroy singletons
+    GameFactory::Destroy();
+    Settings::Destroy();
 }
 
 
diff --git a/utils/eliottxt.cpp b/utils/eliottxt.cpp
index af8e6ee..1943105 100644
--- a/utils/eliottxt.cpp
+++ b/utils/eliottxt.cpp
@@ -76,6 +76,15 @@ wchar_t *rl_gets()
         delete[] wline_read;
     }
 
+    static bool init = true;
+    if (init)
+    {
+        // Initialize readline() explicitly, to help filtering
+        // valgrind results
+        rl_initialize();
+        init = false;
+    }
+
     // Get a line from the user
     static char *line_read;
     line_read = readline("commande> ");
@@ -944,6 +953,7 @@ int main(int argc, char *argv[])
 
         mainLoop(dic);
         GameFactory::Destroy();
+        Settings::Destroy();
 
         // Free the readline static variable
         if (wline_read)