diff --git a/ginga/rv/plugins/Mosaic.py b/ginga/rv/plugins/Mosaic.py
index 8751c5433..0b40f755c 100644
--- a/ginga/rv/plugins/Mosaic.py
+++ b/ginga/rv/plugins/Mosaic.py
@@ -464,8 +464,6 @@ def load_tiles(self, paths, image_loader=None, preprocess=None):
                                 # or size 0 in either dimension
                                 continue
 
-                            image.set(name='hdu%d' % (i))
-
                             if preprocess is not None:
                                 image = preprocess(image)