diff --git a/shellex/.package b/shellex/.package
index 1044489..20a3c8c 100644
--- a/shellex/.package
+++ b/shellex/.package
@@ -2,6 +2,7 @@
 	title = 'Shell utilities',
 	repository = 'kepler155c/opus-apps/{{OPUS_BRANCH}}/shellex',
 	description = [[Experimental!
+A port of openos shell tools.
 
 Linux style shell commands:
 grep, cat, touch, df, etc.
diff --git a/swshop/shopConfig.lua b/swshop/shopConfig.lua
index 8afd0bc..671fcc2 100644
--- a/swshop/shopConfig.lua
+++ b/swshop/shopConfig.lua
@@ -1,8 +1,8 @@
-local UI         = require('ui')
+local UI     = require('ui')
 
-local colors     = _G.colors
-local os         = _G.os
-local peripheral = _G.peripheral
+local colors = _G.colors
+local device = _G.device
+local os     = _G.os
 
 --[[ Configuration Page ]]--
 local wizardPage = UI.WizardPage {
@@ -64,8 +64,8 @@ function wizardPage:saveNode(node)
 end
 
 function wizardPage:isValidType(node)
-  local m = peripheral.getType(node.name)
-  return m == 'monitor' and {
+  local m = device[node.name]
+  return m and m.type == 'monitor' and {
     name = 'Store Front',
     value = 'shop',
     category = 'display',