diff --git a/meiga/result.py b/meiga/result.py
index 2ad2ec0..9b0d436 100644
--- a/meiga/result.py
+++ b/meiga/result.py
@@ -103,7 +103,11 @@ def unwrap_or_else(
         if not self._is_success:
             if on_failure:
                 if failure_args:
-                    failure_args = list(failure_args)
+                    failure_args = (
+                        list(failure_args)
+                        if isinstance(failure_args, tuple)
+                        else [failure_args]
+                    )
                     if Result.__id__ in failure_args:
                         index_meiga_result = failure_args.index(Result.__id__)
                         failure_args[index_meiga_result] = self
@@ -121,7 +125,11 @@ def unwrap_and(self, on_success: Callable, success_args=None):
         if self._is_success:
             if on_success:
                 if success_args:
-                    success_args = list(success_args)
+                    success_args = (
+                        list(success_args)
+                        if isinstance(success_args, tuple)
+                        else [success_args]
+                    )
                     if Result.__id__ in success_args:
                         index_meiga_result = success_args.index(Result.__id__)
                         success_args[index_meiga_result] = self
diff --git a/tests/unit/test_result_handle.py b/tests/unit/test_result_handle.py
index 3ce789b..018e280 100644
--- a/tests/unit/test_result_handle.py
+++ b/tests/unit/test_result_handle.py
@@ -219,3 +219,25 @@ def run():
         )
 
     run()
+
+
+@pytest.mark.parametrize("result", [isSuccess, isFailure])
+def test_should_execute_handler_with_only_one_parameter(result):
+    given_first_parameter = 1
+
+    def on_success(param_1: int):
+        assert param_1 == 1
+
+    def on_failure(param_1: int):
+        assert param_1 == 1
+
+    @meiga
+    def run():
+        result.handle(
+            on_success=on_success,
+            on_failure=on_failure,
+            success_args=given_first_parameter,
+            failure_args=given_first_parameter,
+        )
+
+    run()