diff --git a/testing/vcs/test_vcs_autot_axis_titles.py b/testing/vcs/test_vcs_autot_axis_titles.py
index ec485ccc0a..8dfacdb277 100644
--- a/testing/vcs/test_vcs_autot_axis_titles.py
+++ b/testing/vcs/test_vcs_autot_axis_titles.py
@@ -32,6 +32,7 @@
 s = f(testConfig[plot][1])
 
 x = vcs.init(bg=bg, geometry=(xSize, ySize))
+x.setbgoutputdimensions(xSize,ySize)
 
 # graphics method
 if (plot.find('boxfill') != -1):