diff --git a/lib_afc_mosaic/universe_map_file.py b/lib_afc_mosaic/universe_map_file.py
index caead5b..d7b0d76 100644
--- a/lib_afc_mosaic/universe_map_file.py
+++ b/lib_afc_mosaic/universe_map_file.py
@@ -124,6 +124,7 @@ class AFCMUniverseMapFile:
         self.mosaic_head = map_dict.get('mosaic', {})
         self.metadata = map_dict.get('metadata', {})
         self.mosaic_file_list = map_dict.get('files', {})
+        self.mosaic_postprocess = map_dict.get('postprocess', {})
 
         return None
 
@@ -138,7 +139,8 @@ class AFCMUniverseMapFile:
 
         output_object = json.dumps({"mosaic": self.mosaic_head,
                                     "metadata": self.metadata,
-                                    "files": self.mosaic_file_list}, indent=4)
+                                    "files": self.mosaic_file_list,
+                                    "postprocess": self.mosaic_postprocess}, indent=4)
 
         with open(filename, 'w', encoding="UTF-8") as outfile:
             outfile.write(output_object)