diff --git a/openlp/core/app.py b/openlp/core/app.py
index 4a081c3ce..80168a148 100644
--- a/openlp/core/app.py
+++ b/openlp/core/app.py
@@ -41,7 +41,7 @@ from openlp.core.common import is_macosx, is_win
 from openlp.core.common.applocation import AppLocation
 from openlp.core.loader import loader
 from openlp.core.common.i18n import LanguageManager, UiStrings, translate
-from openlp.core.common.path import copytree, create_paths, str_to_path
+from openlp.core.common.path import copytree, create_paths, Path
 from openlp.core.common.registry import Registry
 from openlp.core.common.settings import Settings
 from openlp.core.display.screens import ScreenList
@@ -303,7 +303,8 @@ def parse_options(args=None):
     parser.add_argument('-p', '--portable', dest='portable', action='store_true',
                         help='Specify if this should be run as a portable app, ')
     parser.add_argument('-pp', '--portable-path', dest='portablepath', default=None,
-                        help='Specify the path of the portable data, defaults to "<AppDir>/../../".')
+                        help='Specify the path of the portable data, defaults to "{dir_name}".'.format(
+                            dir_name=os.path.join('<AppDir>', '..', '..')))
     parser.add_argument('-w', '--no-web-server', dest='no_web_server', action='store_true',
                         help='Turn off the Web and Socket Server ')
     parser.add_argument('rargs', nargs='?', default=[])
@@ -361,12 +362,12 @@ def main(args=None):
         # Get location OpenLPPortable.ini
         if args.portablepath:
             if os.path.isabs(args.portablepath):
-                portable_path = str_to_path(args.portablepath).resolve()
+                portable_path = Path(args.portablepath)
             else:
-                portable_path = (AppLocation.get_directory(AppLocation.AppDir) / '..' /
-                                 str_to_path(args.portablepath)).resolve()
+                portable_path = AppLocation.get_directory(AppLocation.AppDir) / '..' / args.portablepath
         else:
-            portable_path = (AppLocation.get_directory(AppLocation.AppDir) / '..' / '..').resolve()
+            portable_path = AppLocation.get_directory(AppLocation.AppDir) / '..' / '..'
+        portable_path = portable_path.resolve()
         data_path = portable_path / 'Data'
         set_up_logging(portable_path / 'Other')
         log.info('Running portable')
diff --git a/tests/functional/openlp_core/test_app.py b/tests/functional/openlp_core/test_app.py
index 90d5d9082..3bbeb105b 100644
--- a/tests/functional/openlp_core/test_app.py
+++ b/tests/functional/openlp_core/test_app.py
@@ -29,6 +29,7 @@ from PyQt5 import QtCore, QtWidgets
 sys.modules['PyQt5.QtWebEngineWidgets'] = MagicMock()
 
 from openlp.core.app import OpenLP, parse_options
+from openlp.core.common import is_win
 from openlp.core.common.settings import Settings
 from tests.utils.constants import RESOURCE_PATH
 
@@ -89,7 +90,11 @@ def test_parse_options_portable_and_portable_path():
     Test the parse options process works portable and portable-path
     """
     # GIVEN: a a set of system arguments.
-    sys.argv[1:] = ['--portable', '--portable-path .']
+    if is_win():
+        data_path = 'c:\\temp\\openlp-data'
+    else:
+        data_path = '/tmp/openlp-data'
+    sys.argv[1:] = ['--portable', '--portable-path', '{datapath}'.format(datapath=data_path)]
 
     # WHEN: We we parse them to expand to options
     args = parse_options()
@@ -98,7 +103,7 @@ def test_parse_options_portable_and_portable_path():
     assert args.loglevel == 'warning', 'The log level should be set to warning'
     assert args.no_error_form is False, 'The no_error_form should be set to False'
     assert args.portable is True, 'The portable flag should be set to true'
-    assert args.portablepath == '.', 'The portable path should be set to "."'
+    assert args.portablepath == data_path, 'The portable path should be set as expected'
     assert args.rargs == [], 'The service file should be blank'