diff --git a/script/keithley.py b/script/keithley.py
index 70203f78..6cd2517e 100644
--- a/script/keithley.py
+++ b/script/keithley.py
@@ -1,4 +1,4 @@
-#import ch.psi.epics as epics
+import ch.psi.pshell.epics as epics
 
 class Keithley(object):
     def __init__(self, basename):
@@ -14,7 +14,7 @@ class Keithley(object):
         self.readoutCh = None
         
     def initialize(self):
-        self.scanCh = ChannelInteger(basename + "READSCAN.SCAN")
+        self.scanCh = epics.ChannelInteger(basename + "READSCAN.SCAN")
         self.ttypeCh = epics.ChannelInteger(basename + "TTYPE")
         self.nplcCh = epics.ChannelDouble(basename + "NPLC")
         self.navgCh = epics.ChannelInteger(basename + "NAVG")