diff --git a/PhysicsTools/PythonAnalysis/test/testHistogrammar.py b/PhysicsTools/PythonAnalysis/test/testHistogrammar.py
index dd35ad9fcd49c..4ef85bb5aa6e8 100644
--- a/PhysicsTools/PythonAnalysis/test/testHistogrammar.py
+++ b/PhysicsTools/PythonAnalysis/test/testHistogrammar.py
@@ -19,8 +19,7 @@
     histogram.fill(d)
 
 # quick plotting convenience method using matplotlib (if the user has this installed)
-#looks like this interface soon changes to histogram.plot.matplotlib
-ax = histogram.matplotlib(name="hello world!")
+ax = histogram.plot.matplotlib(name="hello world!")
 
 pyplot.savefig('histogrammar.png')