diff --git a/clearml/backend_interface/task/args.py b/clearml/backend_interface/task/args.py
index c0159c98..7805e24f 100644
--- a/clearml/backend_interface/task/args.py
+++ b/clearml/backend_interface/task/args.py
@@ -95,7 +95,7 @@ class _Arguments(object):
                 else:
                     args_dict = call_original_argparser(a_parser, args=a_args, namespace=a_namespace).__dict__
             defaults_ = {
-                a.dest: cls.__cast_arg(args_dict.get(a.dest)) for a in actions
+                a.dest: cls.__cast_arg(args_dict.get(a.dest), a.type) for a in actions
             }
         except Exception:
             # don't crash us if we failed parsing the inputs
@@ -539,10 +539,12 @@ class _Arguments(object):
         return dictionary
 
     @classmethod
-    def __cast_arg(cls, arg):
+    def __cast_arg(cls, arg, dtype=None):
         if arg is None or callable(arg):
             return ''
         # If this an instance, just store the type
         if str(hex(id(arg))) in str(arg):
             return str(type(arg))
+        if dtype in (float, int) and isinstance(arg, list):
+            return [dtype(a) for a in arg]
         return arg
diff --git a/clearml/utilities/args.py b/clearml/utilities/args.py
index a90c9b80..a21f2b6b 100644
--- a/clearml/utilities/args.py
+++ b/clearml/utilities/args.py
@@ -150,10 +150,11 @@ class PatchArgumentParser:
             if parsed_args_namespace and isinstance(parsed_args_namespace, Namespace):
                 for k, v in parser._parsed_arg_string_lookup.items():  # noqa
                     if hasattr(parsed_args_namespace, k):
+                        if isinstance(getattr(parsed_args_namespace, k, None), list) and not isinstance(v, list):
+                            v = [v]
                         setattr(
                             parsed_args_namespace, k,
-                            str([v] if (isinstance(getattr(parsed_args_namespace, k, None), list) and
-                                        not isinstance(v, list)) else v)
+                            v if isinstance(v, list) else str(v)
                         )
 
         PatchArgumentParser._last_parsed_args = (PatchArgumentParser._last_parsed_args or []) + [parsed_args]