diff --git a/ReFuel.Gltf/GltfDocument.cs b/ReFuel.Gltf/GltfDocument.cs
index 1be3147..bbc0a46 100755
--- a/ReFuel.Gltf/GltfDocument.cs
+++ b/ReFuel.Gltf/GltfDocument.cs
@@ -189,7 +189,7 @@ namespace ReFuel.Gltf
                     }
                     else
                     {
-                        str.Seek(0, SeekOrigin.Begin);
+                        wrapper.Seek(0, SeekOrigin.Begin);
                         return OpenJson(wrapper);
                     }
             }
diff --git a/tests/ReFuel.Gltf.Tests/assets/gltf-research-scenes b/tests/ReFuel.Gltf.Tests/assets/gltf-research-scenes
index 2b9fc94..1f47d4c 160000
--- a/tests/ReFuel.Gltf.Tests/assets/gltf-research-scenes
+++ b/tests/ReFuel.Gltf.Tests/assets/gltf-research-scenes
@@ -1 +1 @@
-Subproject commit 2b9fc945d7016048fe7099d67de9024241714ff3
+Subproject commit 1f47d4c63bcad7582150d68300308b0c913bda6c