diff --git a/grill/views/_graph.py b/grill/views/_graph.py
index 51d3af93..15f659f3 100644
--- a/grill/views/_graph.py
+++ b/grill/views/_graph.py
@@ -372,6 +372,9 @@ def _parallel_line(line, distance, head_offset=0):
     return parallel_line
 
 
+_EVENT_POSITION_FUNC = QtGui.QMouseEvent if _IS_QT5 else lambda event: event.globalPosition().toPoint()
+
+
 class _GraphicsViewport(QtWidgets.QGraphicsView):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -394,7 +397,7 @@ def mousePressEvent(self, event):
         if event.button() == QtCore.Qt.MiddleButton:
             self._dragging = True
             QtWidgets.QApplication.setOverrideCursor(QtGui.Qt.ClosedHandCursor)
-            self._last_pan_pos = event.globalPosition().toPoint()
+            self._last_pan_pos = _EVENT_POSITION_FUNC(event)
             event.accept()
 
         return super().mousePressEvent(event)
@@ -410,10 +413,10 @@ def mouseReleaseEvent(self, event):
     def mouseMoveEvent(self, event):
         if self._dragging and event.buttons() == QtCore.Qt.MiddleButton:
             # Pan the scene when middle mouse button is held down
-            delta = event.globalPosition().toPoint() - self._last_pan_pos
+            delta = _EVENT_POSITION_FUNC(event) - self._last_pan_pos
             self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() - delta.x())
             self.verticalScrollBar().setValue(self.verticalScrollBar().value() - delta.y())
-            self._last_pan_pos = event.globalPosition().toPoint()
+            self._last_pan_pos = _EVENT_POSITION_FUNC(event)
             return
         return super().mouseMoveEvent(event)
 
diff --git a/tests/test_views.py b/tests/test_views.py
index cb517a58..a22b50d4 100644
--- a/tests/test_views.py
+++ b/tests/test_views.py
@@ -196,7 +196,7 @@ def _sub_test_scenegraph_composition(self):
 
         widget.deleteLater()
 
-    def test_layer_stack_bidirectionality(self):
+    def _sub_test_layer_stack_bidirectionality(self):
         """Confirm that bidirectionality between layer stacks completes.
 
         Bidirectionality in the composition graph is achieved by:
@@ -713,7 +713,7 @@ def test_pan(self):
         self.assertTrue(view._dragging)
 
         # 2. Mouse move
-        view._last_pan_pos = middle_button_event.globalPosition().toPoint() + QtCore.QPoint(10,10)
+        view._last_pan_pos = _graph._EVENT_POSITION_FUNC(middle_button_event) + QtCore.QPoint(10,10)
         move_event = QtGui.QMouseEvent(QtCore.QEvent.MouseMove, end_position, QtCore.Qt.MiddleButton, QtCore.Qt.MiddleButton, QtCore.Qt.NoModifier)
         view.mouseMoveEvent(move_event)
         last_vertical_scroll_bar = vertical_scroll_bar.value()
@@ -723,7 +723,7 @@ def test_pan(self):
 
         # 3. Release
         view.mouseReleaseEvent(middle_button_event)
-        view._last_pan_pos = middle_button_event.globalPosition().toPoint() + QtCore.QPoint(20, 20)
+        view._last_pan_pos = _graph._EVENT_POSITION_FUNC(middle_button_event) + QtCore.QPoint(20, 20)
         view.mouseMoveEvent(move_event)
         # Confirm no further move is performed
         self.assertEqual(last_vertical_scroll_bar, vertical_scroll_bar.value())