diff --git a/libraries/bxdf/gltf_pbr.mtlx b/libraries/bxdf/gltf_pbr.mtlx
index a134faea16..cb393fb82a 100644
--- a/libraries/bxdf/gltf_pbr.mtlx
+++ b/libraries/bxdf/gltf_pbr.mtlx
@@ -148,11 +148,6 @@
     <!-- Thin-film + Dielectric
          Note: Due to limitations in codegen, the base layer BSDF is duplicated (#1035). -->
 
-    <oren_nayar_diffuse_bsdf name="tf_diffuse_bsdf" type="BSDF">
-      <input name="color" type="color3" interfacename="base_color" />
-      <input name="normal" type="vector3" interfacename="normal" />
-    </oren_nayar_diffuse_bsdf>
-
     <dielectric_bsdf name="tf_transmission_bsdf" type="BSDF">
       <input name="weight" type="float" value="1" />
       <input name="tint" type="color3" interfacename="base_color" />
@@ -173,7 +168,7 @@
     </generalized_schlick_bsdf>
 
     <mix name="tf_transmission_mix" type="BSDF">
-      <input name="bg" type="BSDF" nodename="tf_diffuse_bsdf" />
+      <input name="bg" type="BSDF" nodename="diffuse_bsdf" />
       <input name="fg" type="BSDF" nodename="tf_transmission_bsdf" />
       <input name="mix" type="float" interfacename="transmission" />
     </mix>