diff --git a/trimesh/exchange/obj.py b/trimesh/exchange/obj.py
index 841d183ce..7df865358 100644
--- a/trimesh/exchange/obj.py
+++ b/trimesh/exchange/obj.py
@@ -338,6 +338,8 @@ def parse_mtl(mtl, resolver=None):
                 # load the bytes into a PIL image
                 # an image file name
                 material["image"] = Image.open(util.wrap_as_stream(file_data))
+                # also store the original map_kd file name
+                material[key] = file_name
             except BaseException:
                 log.debug("failed to load image", exc_info=True)