diff --git a/picard/tagger.py b/picard/tagger.py
index 4d9d5868f..17061c3c9 100644
--- a/picard/tagger.py
+++ b/picard/tagger.py
@@ -227,8 +227,6 @@ class Tagger(QtWidgets.QApplication):
         if IS_MACOS:
             # On macOS it is not common that the global menu shows icons
             self.setAttribute(QtCore.Qt.AA_DontShowIconsInMenus)
-            # Ensure monospace font works on macOS
-            QtGui.QFont.insertSubstitution('Monospace', 'Menlo')
 
         # Setup logging
         log.debug("Starting Picard from %r", os.path.abspath(__file__))
diff --git a/picard/ui/__init__.py b/picard/ui/__init__.py
index d70052c1e..ccea1e7a1 100644
--- a/picard/ui/__init__.py
+++ b/picard/ui/__init__.py
@@ -42,7 +42,7 @@ from picard.util import restore_method
 
 if IS_MACOS:
     FONT_FAMILY_MONOSPACE = 'Menlo'
-if IS_WIN:
+elif IS_WIN:
     FONT_FAMILY_MONOSPACE = 'Courier'
 else:
     FONT_FAMILY_MONOSPACE = 'Monospace'