diff --git a/libs/openengine/ogre/renderer.cpp b/libs/openengine/ogre/renderer.cpp
index daf82b9dac..9251e5683e 100644
--- a/libs/openengine/ogre/renderer.cpp
+++ b/libs/openengine/ogre/renderer.cpp
@@ -44,8 +44,10 @@ void OgreRenderer::cleanup()
     delete mFader;
     mFader = NULL;
 
-    OGRE_DELETE mRoot;
+    delete mRoot;
     mRoot = NULL;
+
+    unloadPlugins();
 }
 
 void OgreRenderer::start()
@@ -103,6 +105,31 @@ bool OgreRenderer::loadPlugins()
     return true;
 }
 
+bool OgreRenderer::unloadPlugins()
+{
+    #ifdef ENABLE_PLUGIN_GL
+    delete mGLPlugin;
+    mGLPlugin = NULL;
+    #endif
+    #ifdef ENABLE_PLUGIN_Direct3D9
+    delete mD3D9Plugin;
+    mD3D9Plugin = NULL;
+    #endif
+    #ifdef ENABLE_PLUGIN_CgProgramManager
+    delete mCgPlugin;
+    mCgPlugin = NULL;
+    #endif
+    #ifdef ENABLE_PLUGIN_OctreeSceneManager
+    delete mOctreePlugin;
+    mOctreePlugin = NULL;
+    #endif
+    #ifdef ENABLE_PLUGIN_ParticleFX
+    delete mParticleFXPlugin;
+    mParticleFXPlugin = NULL;
+    #endif
+    return true;
+}
+
 void OgreRenderer::update(float dt)
 {
     mFader->update(dt);
diff --git a/libs/openengine/ogre/renderer.hpp b/libs/openengine/ogre/renderer.hpp
index 00e094b4dc..b71da90202 100644
--- a/libs/openengine/ogre/renderer.hpp
+++ b/libs/openengine/ogre/renderer.hpp
@@ -151,7 +151,9 @@ namespace OEngine
             /// Start the main rendering loop
             void start();
 
-            bool loadPlugins() ;
+            bool loadPlugins();
+
+            bool unloadPlugins();
 
             void update(float dt);