diff --git a/src/llm.py b/src/llm.py
index 70937f9..894e3d1 100644
--- a/src/llm.py
+++ b/src/llm.py
@@ -98,7 +98,11 @@ def add_response_to_json(self, field, value):
             parsed_value = self.handle_plural_values(value)
 
         if field in self._json.keys():
-            self._json[field].append(parsed_value)
+            current_value = self._json[field]
+            if isinstance(current_value, list):
+                self._json[field].append(parsed_value)
+            else:
+                self._json[field] = [current_value, parsed_value]
         else:
             self._json[field] = parsed_value