diff --git a/src/graphics/material_manager.cpp b/src/graphics/material_manager.cpp
index aa9b7b258..6a3aab870 100644
--- a/src/graphics/material_manager.cpp
+++ b/src/graphics/material_manager.cpp
@@ -41,6 +41,18 @@ MaterialManager::MaterialManager()
     // be moved into a separate function.
 }
 
+//-----------------------------------------------------------------------------
+/** Frees all allocated data structures.
+ */
+MaterialManager::~MaterialManager()
+{
+    for(unsigned int i=0; i<m_materials.size(); i++)
+    {
+        delete m_materials[i];
+    }
+    m_materials.clear();
+}   // ~MaterialManager
+
 //-----------------------------------------------------------------------------
 
 void MaterialManager::setAllFlatMaterialFlags(scene::IMeshBuffer *mb) const
diff --git a/src/graphics/material_manager.hpp b/src/graphics/material_manager.hpp
index 8c8608b07..0251857dd 100644
--- a/src/graphics/material_manager.hpp
+++ b/src/graphics/material_manager.hpp
@@ -41,7 +41,8 @@ private:
 
     std::vector<Material*> m_materials;
 public:
-    MaterialManager();
+              MaterialManager();
+             ~MaterialManager();
     void      loadMaterial     ();
     void      reInit           ();
     void      setAllMaterialFlags(video::ITexture* t,