diff --git a/src/common/pluginmanager.cpp b/src/common/pluginmanager.cpp
index 169105404..99b3dbd16 100644
--- a/src/common/pluginmanager.cpp
+++ b/src/common/pluginmanager.cpp
@@ -15,6 +15,24 @@ PluginManager::PluginManager()
 	//qApp->addLibraryPath(getBaseDirPath());
 }
 
+PluginManager::~PluginManager()
+{
+	for(int ii = 0;ii < meshIOPlug.size();++ii)
+		delete meshIOPlug[ii];
+	for(int ii = 0;ii < meshFilterPlug.size();++ii)
+		delete meshFilterPlug[ii];
+	for(int ii = 0;ii < meshRenderPlug.size();++ii)
+		delete meshRenderPlug[ii];
+	for(int ii = 0;ii < meshDecoratePlug.size();++ii)
+		delete meshDecoratePlug[ii];
+	for(int ii = 0;ii < meshDecoratePlug.size();++ii)
+		delete meshEditInterfacePlug[ii];
+	for(QMap<QString,MeshLabXMLFilterContainer>::iterator it = stringXMLFilterMap.begin();it != stringXMLFilterMap.end();++it)
+		MLXMLPluginInfo::destroyXMLPluginInfo(it.value().xmlInfo);
+}
+
+
+
 void PluginManager::loadPlugins(RichParameterSet& defaultGlobal)
 {
 	pluginsDir=QDir(getPluginDirPath());
diff --git a/src/common/pluginmanager.h b/src/common/pluginmanager.h
index 82acac1de..fef9e7719 100644
--- a/src/common/pluginmanager.h
+++ b/src/common/pluginmanager.h
@@ -41,6 +41,7 @@ private:
 	MeshDocumentScriptInterface* currentDocInterface;
 public:
   PluginManager();
+  ~PluginManager();
   enum TypeIO{IMPORT,EXPORT};
   void loadPlugins(RichParameterSet& defaultGlobal);
   QString pluginsCode() const;