diff --git a/apps/openmw/mwgui/layouts.cpp b/apps/openmw/mwgui/layouts.cpp
index dbd6154b7c..f2c650fb39 100644
--- a/apps/openmw/mwgui/layouts.cpp
+++ b/apps/openmw/mwgui/layouts.cpp
@@ -182,7 +182,9 @@ void HUD::setPlayerPos(const float x, const float y)
 }
 
 MapWindow::MapWindow()
-  : Layout("openmw_map_window_layout.xml"), mGlobal(false)
+  : Layout("openmw_map_window_layout.xml")
+  , mGlobal(false)
+  , mVisible(false)
 {
     setCoord(500,0,320,300);
     setText("WorldButton", "World");
@@ -272,6 +274,17 @@ void MapWindow::onWorldButtonClicked(MyGUI::Widget* _sender)
     mButton->setCaption( mGlobal ? "Local" : "World" );
 }
 
+LocalMapBase::LocalMapBase()
+    : mCurX(0)
+    , mCurY(0)
+    , mInterior(false)
+    , mLocalMap(NULL)
+    , mPrefix()
+    , mChanged(false)
+    , mLayout(NULL)
+{
+}
+
 void LocalMapBase::init(MyGUI::ScrollView* widget, OEngine::GUI::Layout* layout)
 {
     mLocalMap = widget;
diff --git a/apps/openmw/mwgui/layouts.hpp b/apps/openmw/mwgui/layouts.hpp
index 8d9a41a229..614479ccce 100644
--- a/apps/openmw/mwgui/layouts.hpp
+++ b/apps/openmw/mwgui/layouts.hpp
@@ -34,6 +34,7 @@ namespace MWGui
   class LocalMapBase
   {
   public:
+    LocalMapBase();
     void init(MyGUI::ScrollView* widget, OEngine::GUI::Layout* layout);
 
     void setCellPrefix(const std::string& prefix);
@@ -85,6 +86,7 @@ namespace MWGui
   {
   public:
     MapWindow();
+    virtual ~MapWindow(){}
 
     void setVisible(bool b);
     void setPlayerPos(const float x, const float y);