diff --git a/pytorch_lightning/core/lightning.py b/pytorch_lightning/core/lightning.py
index 71d3ec186b7c0..c6bd26cce869a 100644
--- a/pytorch_lightning/core/lightning.py
+++ b/pytorch_lightning/core/lightning.py
@@ -1961,7 +1961,7 @@ def model_size(self) -> float:
         """
         rank_zero_deprecation(
             "The `LightningModule.model_size` property was deprecated in v1.5 and will be removed in v1.7. Please "
-            "use the get_model_size_mb method under utilities/memory.py"
+            "use the `utilities.memory.get_model_size_mb` method under utilities/memory.py"
         )
 
         tmp_name = f"{uuid.uuid4().hex}.pt"
diff --git a/tests/deprecated_api/test_remove_1-7.py b/tests/deprecated_api/test_remove_1-7.py
index a789493e7113b..f2ed31114f5f2 100644
--- a/tests/deprecated_api/test_remove_1-7.py
+++ b/tests/deprecated_api/test_remove_1-7.py
@@ -21,6 +21,6 @@ def test_v1_7_0_deprecated_model_size():
     model = BoringModel()
     with pytest.deprecated_call(
         match="The `LightningModule.model_size` property was deprecated in v1.5 and will be removed in v1.7. "
-        "Please use the get_model_size_mb method under utilities/memory.py"
+        "Please use the `utilities.memory.get_model_size_mb` method under utilities/memory.py"
     ):
         _ = model.model_size