diff --git a/src/calibre/gui2/widgets.py b/src/calibre/gui2/widgets.py
index 9e117822e4..8077fe46f5 100644
--- a/src/calibre/gui2/widgets.py
+++ b/src/calibre/gui2/widgets.py
@@ -16,7 +16,6 @@ from PyQt4.Qt import QIcon, QFont, QLabel, QListWidget, QAction, \
                         QTimer, QRect
 
 from calibre.gui2 import NONE, error_dialog, pixmap_to_data, gprefs
-from calibre.constants import isosx
 from calibre.gui2.filename_pattern_ui import Ui_Form
 from calibre import fit_image
 from calibre.ebooks import BOOK_EXTENSIONS
@@ -304,8 +303,9 @@ class FontFamilyModel(QAbstractListModel):
             return NONE
         if role == Qt.DisplayRole:
             return QVariant(family)
-        if not isosx and role == Qt.FontRole:
-            # Causes a Qt crash with some fonts on OS X
+        if False and role == Qt.FontRole:
+            # Causes a Qt crash with some fonts
+            # so disabled.
             return QVariant(QFont(family))
         return NONE