diff --git a/CEP/Calibration/BBSControl/scripts/parmdbplot.py b/CEP/Calibration/BBSControl/scripts/parmdbplot.py
index 1d057bd4dba79b15831ea21ffebd11ff6ee9800b..e6343ceb60c5eebfbd4fb41570b73e92b5e62b65 100755
--- a/CEP/Calibration/BBSControl/scripts/parmdbplot.py
+++ b/CEP/Calibration/BBSControl/scripts/parmdbplot.py
@@ -26,8 +26,8 @@
 # $Id$
 
 import sys, copy, math, numpy, signal
-from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
-from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
+from matplotlib.backends.backend_qt4agg import FigureCanvasQT as FigureCanvas
+from matplotlib.backends.backend_qt4agg import NavigationToolbar2QT as NavigationToolbar
 from matplotlib.figure import Figure
 from matplotlib.font_manager import FontProperties