diff --git a/src/common/globals.cpp b/src/common/globals.cpp
index a9387c772..dd5a97a34 100644
--- a/src/common/globals.cpp
+++ b/src/common/globals.cpp
@@ -109,8 +109,8 @@ RichParameterList& meshlab::defaultGlobalParameterList()
 	return globalRPS;
 }
 
-PluginManager& meshlab::pluginManagerInstance(bool verbose)
+PluginManager& meshlab::pluginManagerInstance()
 {
-	static PluginManager pm(defaultGlobalParameterList(), verbose);
+	static PluginManager pm;
 	return pm;
 }
diff --git a/src/common/globals.h b/src/common/globals.h
index 7246cb38a..8f534fad7 100644
--- a/src/common/globals.h
+++ b/src/common/globals.h
@@ -35,7 +35,7 @@ QString defaultPluginPath();
 QString defaultShadersPath();
 
 RichParameterList& defaultGlobalParameterList();
-PluginManager& pluginManagerInstance(bool verbose = true);
+PluginManager& pluginManagerInstance();
 
 }
 
diff --git a/src/common/plugin_manager.cpp b/src/common/plugin_manager.cpp
index 632fb3e4b..adfa360dc 100644
--- a/src/common/plugin_manager.cpp
+++ b/src/common/plugin_manager.cpp
@@ -58,16 +58,6 @@ PluginManager::PluginManager()
 {
 }
 
-PluginManager::PluginManager(RichParameterList& defaultGlobal, bool verbose)
-{
-	loadPlugins(defaultGlobal, verbose);
-}
-
-PluginManager::PluginManager(RichParameterList& defaultGlobal, const QDir& pluginsDirectory, bool verbose)
-{
-	loadPlugins(defaultGlobal, pluginsDirectory, verbose);
-}
-
 PluginManager::~PluginManager()
 {
 	ioMeshPlugins.clear();
@@ -85,12 +75,12 @@ PluginManager::~PluginManager()
 
 
 
-void PluginManager::loadPlugins(RichParameterList& defaultGlobal, bool verbose)
+void PluginManager::loadPlugins(bool verbose)
 {
-	loadPlugins(defaultGlobal, QDir(meshlab::defaultPluginPath()), verbose);
+	loadPlugins(QDir(meshlab::defaultPluginPath()), verbose);
 }
 
-void PluginManager::loadPlugins(RichParameterList& defaultGlobal, const QDir& pluginsDirectory, bool verbose)
+void PluginManager::loadPlugins(const QDir& pluginsDirectory, bool verbose)
 {
 	pluginsDir = pluginsDirectory;
 	// without adding the correct library path in the mac the loading of jpg (done via qt plugins) fails
@@ -171,7 +161,7 @@ void PluginManager::loadPlugins(RichParameterList& defaultGlobal, const QDir& pl
 				decoratePlugins.push_back(iDecorator);
 				for(QAction *decoratorAction : iDecorator->actions())
 				{
-					iDecorator->initGlobalParameterList(decoratorAction, defaultGlobal);
+					iDecorator->initGlobalParameterList(decoratorAction, meshlab::defaultGlobalParameterList());
 				}
 			}
 			
diff --git a/src/common/plugin_manager.h b/src/common/plugin_manager.h
index 1fae5a576..dbe6d76fb 100644
--- a/src/common/plugin_manager.h
+++ b/src/common/plugin_manager.h
@@ -42,12 +42,10 @@ class PluginManager
 {
 public:
 	PluginManager();
-	PluginManager(RichParameterList& defaultGlobal, bool verbose = false);
-	PluginManager(RichParameterList& defaultGlobal, const QDir& pluginsDirectory, bool verbose = false);
-
 	~PluginManager();
-	void loadPlugins(RichParameterList& defaultGlobal, bool verbose = false);
-	void loadPlugins(RichParameterList& defaultGlobal, const QDir& pluginsDirectory, bool verbose = false);
+	
+	void loadPlugins(bool verbose = false);
+	void loadPlugins(const QDir& pluginsDirectory, bool verbose = false);
 	QString pluginsCode() const;
 
 	unsigned int size() const;
diff --git a/src/meshlab/mainwindow_Init.cpp b/src/meshlab/mainwindow_Init.cpp
index 2f5bc639b..2c685b3fb 100644
--- a/src/meshlab/mainwindow_Init.cpp
+++ b/src/meshlab/mainwindow_Init.cpp
@@ -63,6 +63,7 @@ MainWindow::MainWindow():
 	layerDialog->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
 	layerDialog->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Minimum);
 	addDockWidget(Qt::RightDockWidgetArea, layerDialog);
+	PM.loadPlugins();
 
 
 	//setCentralWidget(workspace);