diff --git a/unittests/test_converters.py b/unittests/test_converters.py
index 248c5e3bfa24a0773924ad35db0f41fe9acfed0f..67c93c74e4011bc402817b79a660a8c06ba38800 100644
--- a/unittests/test_converters.py
+++ b/unittests/test_converters.py
@@ -45,7 +45,8 @@ from caoscrawler.converters import (Converter, ConverterValidationError,
                                     handle_value, replace_variables)
 from caoscrawler.crawl import Crawler
 from caoscrawler.scanner import (_load_definition_from_yaml_dict,
-                                 create_converter_registry, load_definition)
+                                 create_converter_registry, load_definition,
+                                 create_transformer_registry)
 from caoscrawler.stores import GeneralStore
 from caoscrawler.structure_elements import (BooleanElement, DictElement,
                                             Directory, File, FloatElement,
@@ -416,6 +417,22 @@ def test_apply_replace(converter_registry):
     conv.apply_transformers(values, transformer_functions)
     assert values['b'] == "16:45"
 
+def test_apply_replace_from_def(converter_registry):
+    cfood_def = {"type": 'ListElement', "match_name": ".*",
+                 'transform': {'test': {'in': '$a', 'out': '$b', 'functions': [{
+                     'replace': {'insert': ':', "remove": "_"}}]}}}
+    values = GeneralStore()
+    values["a"] = "16_45"
+
+    transformer_functions  = create_transformer_registry({})
+    # transformer_functions = {"replace": replace}
+
+    conv = ListElementConverter(definition=cfood_def, name='test',
+                                converter_registry=converter_registry)
+
+    conv.apply_transformers(values, transformer_functions)
+    assert values['b'] == "16:45"
+
 
 def test_filter_children_of_directory(converter_registry, capsys):
     """Verify that children (i.e., files) in a directory are filtered or sorted correctly. """