diff --git a/code/nel/tools/3d/ligo/plugin_max/script.cpp b/code/nel/tools/3d/ligo/plugin_max/script.cpp
index effc3a2a2..36d5ff109 100644
--- a/code/nel/tools/3d/ligo/plugin_max/script.cpp
+++ b/code/nel/tools/3d/ligo/plugin_max/script.cpp
@@ -250,7 +250,7 @@ Value* export_material_cf (Value** arg_list, int count)
 										ok = false;
 									}
 								}
-								catch (Exception &e)
+								catch (const Exception &e)
 								{
 									// Error message
 									char tmp[512];
diff --git a/code/nel/tools/3d/plugin_max/nel_mesh_lib/calc_lm.cpp b/code/nel/tools/3d/plugin_max/nel_mesh_lib/calc_lm.cpp
index 21d63b626..863b1b89b 100644
--- a/code/nel/tools/3d/plugin_max/nel_mesh_lib/calc_lm.cpp
+++ b/code/nel/tools/3d/plugin_max/nel_mesh_lib/calc_lm.cpp
@@ -2128,7 +2128,7 @@ void appendLightmapLog (COFile &outputLog, const char *lightmapName, const vecto
 		
 		outputLog.serialBuffer ((uint8*)text.c_str(), text.size());
 	}
-	catch (exception &e)
+	catch (const exception &e)
 	{
 		nlwarning ("Error writing the file : %s", e.what());
 	}
diff --git a/code/nel/tools/3d/plugin_max/nel_mesh_lib/export_scene.cpp b/code/nel/tools/3d/plugin_max/nel_mesh_lib/export_scene.cpp
index 5d9caef86..2fb18cd9f 100644
--- a/code/nel/tools/3d/plugin_max/nel_mesh_lib/export_scene.cpp
+++ b/code/nel/tools/3d/plugin_max/nel_mesh_lib/export_scene.cpp
@@ -458,7 +458,7 @@ CInstanceGroup*	CExportNel::buildInstanceGroup(const vector<INode*>& vectNode, v
 									delete ss.getShapePointer();
 									ss.setShapePointer(NULL);
 								}
-								catch (NLMISC::Exception &e)
+								catch (const NLMISC::Exception &e)
 								{
 									nlwarning(e.what());									
 								}