diff --git a/extensions/chaeo/util.py b/extensions/chaeo/util.py
index 9bed0644c41e90d434fbad2d50fcfe82b2e47aa8..60186ef58c4e829e7d490c027d69ac4b2df32236 100644
--- a/extensions/chaeo/util.py
+++ b/extensions/chaeo/util.py
@@ -89,8 +89,10 @@ def loop_workflow(files, where_output, workflow_func, params,
         # export intermediate data if flagged
         if write_intermediate_products:
             for k in result['interm'].keys():
+                path = Path(where_output) / k / (Path(ff).stem + '.tif')
+                path.parent.mkdir(parents=True, exist_ok=True)
                 write_accessor_data_to_file(
-                    Path(where_output) / k / (Path(ff).stem + '.tif'),
+                    path,
                     InMemoryDataAccessor(result['interm'][k])
                 )