diff --git a/src/osgPlugins/obj/ReaderWriterOBJ.cpp b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
index 00cc880dc..8b50ddff1 100644
--- a/src/osgPlugins/obj/ReaderWriterOBJ.cpp
+++ b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
@@ -356,7 +356,7 @@ void ReaderWriterOBJ::buildMaterialToStateSetMap(obj::Model& model, MaterialToSt
             osg_material->setDiffuse(osg::Material::FRONT_AND_BACK,material.diffuse);
             osg_material->setEmission(osg::Material::FRONT_AND_BACK,material.emissive);
 
-            if (material.illum == 2) {
+            if (material.illum >= 2) {
                 osg_material->setSpecular(osg::Material::FRONT_AND_BACK,material.specular);
             } else {
                 osg_material->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(0,0,0,1));