diff --git a/pyqtgraph/graphicsItems/tests/test_PlotCurveItem.py b/pyqtgraph/graphicsItems/tests/test_PlotCurveItem.py
index 6d60d3e1..80dee478 100644
--- a/pyqtgraph/graphicsItems/tests/test_PlotCurveItem.py
+++ b/pyqtgraph/graphicsItems/tests/test_PlotCurveItem.py
@@ -4,10 +4,11 @@ from pyqtgraph.tests import assertImageApproved
 
 
 def test_PlotCurveItem():
-    p = pg.GraphicsWindow()
-    p.ci.layout.setContentsMargins(4, 4, 4, 4)  # default margins vary by platform
-    v = p.addViewBox()
+    p = pg.GraphicsLayoutWidget()
     p.resize(200, 150)
+    p.ci.setContentsMargins(4, 4, 4, 4)  # default margins vary by platform
+    p.show()
+    v = p.addViewBox()
     data = np.array([1,4,2,3,np.inf,5,7,6,-np.inf,8,10,9,np.nan,-1,-2,0])
     c = pg.PlotCurveItem(data)
     v.addItem(c)