diff --git a/src/caoscrawler/converters.py b/src/caoscrawler/converters.py
index 5c193e613dab023c50844822b9139cad5fb97fb4..3fbf9939664af20f35150e5fff95854634ea3040 100644
--- a/src/caoscrawler/converters.py
+++ b/src/caoscrawler/converters.py
@@ -513,6 +513,8 @@ class DictConverter(Converter):
                 children.append(DictBooleanElement(name, value))
             elif type(value) == float:
                 children.append(DictFloatElement(name, value))
+            elif type(value) == type(None):
+                continue
             else:
                 children.append(DictElement(name, value))
                 warnings.warn(f"The value in the dict for key:{name} has an unknown type. "
diff --git a/unittests/test_directories/examples_json/testjson.json b/unittests/test_directories/examples_json/testjson.json
index b893b608a6a2119c5c3252cd9cff4c4100f404da..d37ea2defc21d767e4e13ad3b39d6682b3c452ef 100644
--- a/unittests/test_directories/examples_json/testjson.json
+++ b/unittests/test_directories/examples_json/testjson.json
@@ -6,6 +6,7 @@
         {
 		    "firstname": "Miri",
 		    "lastname": "Mueller",
+		    "other": null,
 		    "email": "miri.mueller@science.de"
 	    },
         {