diff --git a/src/crewai/task.py b/src/crewai/task.py
index b9e341e33..4d4e98ec0 100644
--- a/src/crewai/task.py
+++ b/src/crewai/task.py
@@ -373,6 +373,7 @@ class Task(BaseModel):
 
             pydantic_output, json_output = self._export_output(result)
             task_output = TaskOutput(
+                key=self.key,
                 name=self.name,
                 description=self.description,
                 expected_output=self.expected_output,
diff --git a/src/crewai/tasks/task_output.py b/src/crewai/tasks/task_output.py
index b0e8aecd4..14a8d25ca 100644
--- a/src/crewai/tasks/task_output.py
+++ b/src/crewai/tasks/task_output.py
@@ -9,6 +9,7 @@ from crewai.tasks.output_format import OutputFormat
 class TaskOutput(BaseModel):
     """Class that represents the result of a task."""
 
+    key: Optional[str] = Field(description="Key of the task", default=None)
     description: str = Field(description="Description of the task")
     name: Optional[str] = Field(description="Name of the task", default=None)
     expected_output: Optional[str] = Field(
diff --git a/tests/task_test.py b/tests/task_test.py
index 3cd11cfc7..2a8153266 100644
--- a/tests/task_test.py
+++ b/tests/task_test.py
@@ -111,6 +111,7 @@ def test_task_callback():
         task.execute_sync(agent=researcher)
         task_completed.assert_called_once_with(task.output)
 
+        assert task.output.key == task.key
         assert task.output.description == task.description
         assert task.output.expected_output == task.expected_output
         assert task.output.name == task.name
@@ -149,6 +150,7 @@ def test_task_callback_returns_task_output():
         assert isinstance(callback_data, str)
         output_dict = json.loads(callback_data)
         expected_output = {
+            "key": task.key,
             "description": task.description,
             "raw": "exported_ok",
             "pydantic": None,