diff --git a/examples/show_spectrum.py b/examples/show_spectrum.py
index 62f7823..c594efd 100755
--- a/examples/show_spectrum.py
+++ b/examples/show_spectrum.py
@@ -2,7 +2,7 @@
 # ==========================================================================
 # Display spectrum generated by csspec
 #
-# Copyright (C) 2015-2017 Juergen Knoedlseder
+# Copyright (C) 2015-2019 Juergen Knoedlseder
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -19,8 +19,6 @@
 #
 # ==========================================================================
 import sys
-import gammalib
-import cscripts
 try:
     import matplotlib.pyplot as plt
     plt.figure()
@@ -28,6 +26,8 @@ try:
 except (ImportError, RuntimeError):
     print('This script needs the "matplotlib" module')
     sys.exit()
+import gammalib
+import cscripts
 
 
 # ============= #