diff --git a/code/nel/src/3d/shape_material_serializer.cpp b/code/nel/src/3d/shape_material_serializer.cpp
index 9fe273acd..c18e24d32 100644
--- a/code/nel/src/3d/shape_material_serializer.cpp
+++ b/code/nel/src/3d/shape_material_serializer.cpp
@@ -62,7 +62,7 @@ namespace NL3D
 				CDynMaterial *dm = m.getDynMat();
 				fname = path + "_";
 				fname += char( '0' + i );
-				fname += ".nlmat";
+				fname += ".nelmat";
 
 				nlinfo( "exporting to %s", fname.c_str() );