diff --git a/openlp/.version b/openlp/.version
index a4b9b4eef..0b1153b27 100644
--- a/openlp/.version
+++ b/openlp/.version
@@ -1 +1 @@
-2.5.dev2856
\ No newline at end of file
+2.5.dev2899
\ No newline at end of file
diff --git a/openlp/plugins/presentations/lib/maclocontroller.py b/openlp/plugins/presentations/lib/maclocontroller.py
index 1b0cfea8c..0968e53fa 100644
--- a/openlp/plugins/presentations/lib/maclocontroller.py
+++ b/openlp/plugins/presentations/lib/maclocontroller.py
@@ -23,29 +23,35 @@
 import logging
 from subprocess import Popen
 
-from Pyro4 import Proxy
-
 from openlp.core.common import delete_file, is_macosx
 from openlp.core.common.applocation import AppLocation
 from openlp.core.common.mixins import LogMixin
 from openlp.core.common.path import Path
 from openlp.core.common.registry import Registry
 from openlp.core.display.screens import ScreenList
-from openlp.plugins.presentations.lib.serializers import register_classes
 from openlp.plugins.presentations.lib.presentationcontroller import PresentationController, PresentationDocument
 
 
 LIBREOFFICE_PATH = Path('/Applications/LibreOffice.app')
 LIBREOFFICE_PYTHON = LIBREOFFICE_PATH / 'Contents' / 'Resources' / 'python'
 
-if is_macosx() and LIBREOFFICE_PATH.exists():
-    macuno_available = True
-else:
+try:
+    from Pyro4 import Proxy
+    if is_macosx() and LIBREOFFICE_PATH.exists():
+        macuno_available = True
+    else:
+        macuno_available = False
+except ImportError:
     macuno_available = False
 
 
+if macuno_available:
+    # If this controller is good to go, register the serializer classes with Pyro4
+    from openlp.plugins.presentations.lib.serializers import register_classes
+    register_classes()
+
+
 log = logging.getLogger(__name__)
-register_classes()
 
 
 class MacLOController(PresentationController, LogMixin):
diff --git a/tests/functional/openlp_plugins/presentations/test_libreofficeserver.py b/tests/functional/openlp_plugins/presentations/test_libreofficeserver.py
index d747317d9..7131de698 100644
--- a/tests/functional/openlp_plugins/presentations/test_libreofficeserver.py
+++ b/tests/functional/openlp_plugins/presentations/test_libreofficeserver.py
@@ -22,8 +22,18 @@
 """
 Functional tests to test the LibreOffice Pyro server
 """
+from unittest import SkipTest
 from unittest.mock import MagicMock, patch, call
 
+from openlp.core.common import is_macosx
+
+try:
+    import Pyro4    # noqa: F401
+except ImportError:
+    raise SkipTest('Pyro4 is not installed, skipping testing the LibreOffice server')
+if not is_macosx():
+    raise SkipTest('Not on macOS, skipping testing the LibreOffice server')
+
 from openlp.plugins.presentations.lib.libreofficeserver import LibreOfficeServer, TextType, main
 
 
diff --git a/tests/functional/openlp_plugins/presentations/test_maclocontroller.py b/tests/functional/openlp_plugins/presentations/test_maclocontroller.py
index e53a0b576..8fea0f80e 100644
--- a/tests/functional/openlp_plugins/presentations/test_maclocontroller.py
+++ b/tests/functional/openlp_plugins/presentations/test_maclocontroller.py
@@ -24,9 +24,10 @@ Functional tests to test the Mac LibreOffice class and related methods.
 """
 import shutil
 from tempfile import mkdtemp
-from unittest import TestCase
+from unittest import TestCase, SkipTest
 from unittest.mock import MagicMock, patch, call
 
+from openlp.core.common import is_macosx
 from openlp.core.common.settings import Settings
 from openlp.core.common.path import Path
 from openlp.plugins.presentations.lib.maclocontroller import MacLOController, MacLODocument
@@ -35,6 +36,13 @@ from openlp.plugins.presentations.presentationplugin import __default_settings__
 from tests.helpers.testmixin import TestMixin
 from tests.utils.constants import TEST_RESOURCES_PATH
 
+try:
+    import Pyro4    # noqa: F401
+except ImportError:
+    raise SkipTest('Pyro4 is not installed, skipping testing the Mac LibreOffice controller')
+if not is_macosx():
+    raise SkipTest('Not on macOS, skipping testing the Mac LibreOffice controller')
+
 
 class TestMacLOController(TestCase, TestMixin):
     """