diff --git a/pyqtgraph/graphicsItems/ROI.py b/pyqtgraph/graphicsItems/ROI.py
index 52aecd9dab..76bb40c466 100644
--- a/pyqtgraph/graphicsItems/ROI.py
+++ b/pyqtgraph/graphicsItems/ROI.py
@@ -1196,7 +1196,6 @@ def _getArrayRegionForArbitraryShape(self, data, img, axes=(0,1), returnMappedCo
         See :meth:`~pyqtgraph.ROI.getArrayRegion` for a description of the
         arguments.
         """
-        br = self.boundingRect()
         if returnMappedCoords:
             sliced, mappedCoords = ROI.getArrayRegion(
                 self, data, img, axes, returnMappedCoords, fromBoundingRect=True, **kwds)