diff --git a/src/taggingbackends/main.py b/src/taggingbackends/main.py
index 166bc9c9d3012cae7ed355cff8c09e20b47e0a60..a5b7b8e98d237e375fff0e7990709e49573a4080 100644
--- a/src/taggingbackends/main.py
+++ b/src/taggingbackends/main.py
@@ -111,6 +111,7 @@ def main(fun=None):
         trxmat_only = reuse_h5files = False
         make_dataset = build_features = None
         pretrained_model_instance = None
+        original_model_instance = None
         sandbox = False
         balancing_strategy = 'auto'
         include_all = None