diff --git a/examples/js/exporters/OBJExporter.js b/examples/js/exporters/OBJExporter.js
index 1d47a6a8ee113930ca77127b9e38017f347a85a8..27c251f1e58fb0e37a1b5231baf084bfe2ea32af 100644
--- a/examples/js/exporters/OBJExporter.js
+++ b/examples/js/exporters/OBJExporter.js
@@ -49,6 +49,11 @@ THREE.OBJExporter.prototype = {
 				// name of the mesh object
 				output += 'o ' + mesh.name + '\n';
 
+				// name of the mesh material
+				if ( mesh.material && mesh.material.name ) {
+					output += 'usemtl ' + mesh.material.name + '\n';
+				}
+
 				// vertices
 
 				if( vertices !== undefined ) {