diff --git a/src/ansys/mechanical/core/embedding/app.py b/src/ansys/mechanical/core/embedding/app.py
index 2967c29a3..d3d2a2435 100644
--- a/src/ansys/mechanical/core/embedding/app.py
+++ b/src/ansys/mechanical/core/embedding/app.py
@@ -225,7 +225,9 @@ def open(self, db_file, remove_lock=False):
             if lock_file.exists():
                 warnings.warn(
                     f"Removing the lock file, {lock_file}, before opening the project. \
-This may corrupt the project file."
+This may corrupt the project file.",
+                    UserWarning,
+                    stacklevel=2,
                 )
                 lock_file.unlink()
 
diff --git a/tests/embedding/test_app.py b/tests/embedding/test_app.py
index 31819d132..871c3745e 100644
--- a/tests/embedding/test_app.py
+++ b/tests/embedding/test_app.py
@@ -447,8 +447,9 @@ def test_app_lock_file_open(embedded_app, tmp_path: pytest.TempPathFactory):
     # Assert the lock file exists after opening it
     assert lock_file.exists()
 
-    # Remove the lock file before opening the project file
-    embedded_app.open(project_file, remove_lock=True)
+    with pytest.warns(UserWarning):
+        # Remove the lock file before opening the project file
+        embedded_app.open(project_file, remove_lock=True)
 
     # Assert the lock file has been removed
     assert not lock_file.exists()