diff --git a/tvtk/tests/test_garbage_collection.py b/tvtk/tests/test_garbage_collection.py
index 6ab764e5..b995f3ff 100644
--- a/tvtk/tests/test_garbage_collection.py
+++ b/tvtk/tests/test_garbage_collection.py
@@ -20,7 +20,7 @@
 if ETSConfig.toolkit in ('qt4', 'qt'):
     import pyface
     from pyface.qt import api_name
-    if api_name in ('pyqt', 'pyqt5') and \
+    if api_name in ('pyqt', 'pyqt5') and hasattr(pyface, "__version__") and \
             Version(pyface.__version__) < Version('7.5.0.dev0'):
         bad_pyqt5 = True