diff --git a/examples/ClientTests/scripts/Check_Air.py b/examples/ClientTests/scripts/Check_Air.py
index ff1bd8313ac98479dd5fb0c744c12959f7fdb7d5..a9df730fe565895d86977557a9b600e2d6c3cc8e 100644
--- a/examples/ClientTests/scripts/Check_Air.py
+++ b/examples/ClientTests/scripts/Check_Air.py
@@ -57,10 +57,10 @@ def run():
   DDG4.setPrintLevel(DDG4.OutputLevel.DEBUG)
   #
   ui.Commands = [
-    '/ddg4/ConstructGeometry/printVolume /world_volume_1'
-    ,'/ddg4/ConstructGeometry/printMaterial Air'
-    ,'/ddg4/ConstructGeometry/printMaterial Vacuum'
-    ,'/ddg4/UI/exit'
+    '/ddg4/ConstructGeometry/printVolume /world_volume_1',
+    '/ddg4/ConstructGeometry/printMaterial Air',
+    '/ddg4/ConstructGeometry/printMaterial Vacuum',
+    '/ddg4/UI/exit'
     ]
   kernel.NumEvents = 0
   kernel.configure()
@@ -68,5 +68,6 @@ def run():
   kernel.run()
   kernel.terminate()
 
+
 if __name__ == "__main__":
   run()