diff --git a/pytorch_lightning/core/step_result.py b/pytorch_lightning/core/step_result.py
index 1e4023af07..b4502e1b70 100644
--- a/pytorch_lightning/core/step_result.py
+++ b/pytorch_lightning/core/step_result.py
@@ -45,6 +45,12 @@ class Result(Dict):
             }
         }
 
+    def __getitem__(self, key: Union[str, Any]) -> Any:
+        try:
+            return super().__getitem__(key)
+        except KeyError:
+            return super().__getitem__(f'step_{key}')
+
     def __getattr__(self, key: str) -> Any:
         try:
             if key == 'callback_metrics':
diff --git a/tests/core/test_results.py b/tests/core/test_results.py
index 187423c5ce..bbae6e6114 100644
--- a/tests/core/test_results.py
+++ b/tests/core/test_results.py
@@ -236,3 +236,11 @@ def test_result_gather_mixed_types():
     expected = [1.2, ["bar", None], torch.tensor(1)]
     assert isinstance(result["foo"], list)
     assert result["foo"] == expected
+
+
+def test_result_retrieve_last_logged_item():
+    result = Result()
+    result.log('a', 5., on_step=True, on_epoch=True)
+    assert result['epoch_a'] == 5.
+    assert result['step_a'] == 5.
+    assert result['a'] == 5.