diff --git a/script/scan1.py b/script/scan1.py
index e17e8a80..878982b5 100644
--- a/script/scan1.py
+++ b/script/scan1.py
@@ -9,7 +9,7 @@ scienta.waitReady(-1)
 
 data = scienta.data.take()
 if data==formerData:
-    raise "Data not updated"
+    raise Exception("Data not updated")
 
 print data.tolist()[0]