diff --git a/src/utils/MatHelper.php b/src/utils/MatHelper.php
index 69c5b57..4120912 100644
--- a/src/utils/MatHelper.php
+++ b/src/utils/MatHelper.php
@@ -340,6 +340,8 @@ class MatHelper{
             $matOriginal->matParams->translucencyColor,
             1 - $translucencyIntensity
         ));
+        $material->setSpecular("0.04 0.04 0.04");
+        $material->setSpecular_BF("0.04 0.04 0.04");
         $material->setUroughness($matOriginal->matParams->roughness);
         $material->setVroughness($matOriginal->matParams->roughness);