diff --git a/src/caoscrawler/converters.py b/src/caoscrawler/converters.py
index 5a22704c15d7d288eb69865e929fa350036cd794..460331699eff4721a8263e916010885f224d3345 100644
--- a/src/caoscrawler/converters.py
+++ b/src/caoscrawler/converters.py
@@ -158,6 +158,7 @@ def handle_value(value: Union[dict, str, list], values: GeneralStore):
         # variables replacement:
         propvalue = list()
         for element in value:
+            # Do the element-wise replacement only, when its type is string:
             if type(element) == str:
                 propvalue.append(replace_variables(element, values))
             else: