diff --git a/model_server/base/roiset.py b/model_server/base/roiset.py
index d7ee2e2f7b48b2a4418f4ace92515dcf322a1f7b..c23187a86fbcc2887384d1dd8f419882b544ca37 100644
--- a/model_server/base/roiset.py
+++ b/model_server/base/roiset.py
@@ -573,7 +573,7 @@ class RoiSet(object):
                 continue
             if k == 'patches_3d':
                 files = self.export_patches(
-                    subdir, white_channel=channel, prefix=pr, make_3d=True, **kp
+                    subdir, white_channel=channel, prefix=pr, make_3d=True, expanded=True, **kp
                 )
             if k == 'annotated_patches_2d':
                 files = self.export_patches(