diff --git a/NEW_RELEASE_NOTES.md b/NEW_RELEASE_NOTES.md
index b2987e5c1b..1b657fc8a5 100644
--- a/NEW_RELEASE_NOTES.md
+++ b/NEW_RELEASE_NOTES.md
@@ -13,4 +13,5 @@ appropriate header in [RELEASE_NOTES.md](./RELEASE_NOTES.md).
   dark fringes to appear (recompile materials)
 - Allow glTF materials with transmission/volume extensions to choose their alpha mode
   instead of forcing `MASKED`
+- Fix a crash in gltfio when not using ubershaders
 - Use flatmat for mat parameter in jsbinding
diff --git a/libs/gltfio/src/JitShaderProvider.cpp b/libs/gltfio/src/JitShaderProvider.cpp
index 8eeb06323f..7855d8b905 100644
--- a/libs/gltfio/src/JitShaderProvider.cpp
+++ b/libs/gltfio/src/JitShaderProvider.cpp
@@ -287,7 +287,7 @@ std::string shaderFromKey(const MaterialKey& config) {
 
                 // TODO: Provided by Filament, but this should really be provided/computed by gltfio
                 // TODO: This scale is per renderable and should include the scale of the mesh node
-                float scale = object_uniforms.userData;
+                float scale = getObjectUserData();
                 material.thickness = materialParams.volumeThicknessFactor * scale;
             )SHADER";