diff --git a/sys/apis/ui.lua b/sys/apis/ui.lua
index 01cf867..d49501f 100644
--- a/sys/apis/ui.lua
+++ b/sys/apis/ui.lua
@@ -2346,10 +2346,7 @@ function UI.Wizard:eventHandler(event)
 			event.current:disable()
 		end
 
-		-- a new current view
 		local current = event.next or event.prev
-		current:enable()
-
 		if Util.find(self.pages, 'index', current.index - 1) then
 			self.previousButton:enable()
 		else
@@ -2363,6 +2360,8 @@ function UI.Wizard:eventHandler(event)
 			self.nextButton.text = 'Accept'
 			self.nextButton.event = 'accept'
 		end
+		-- a new current view
+		current:enable()
 		self:draw()
 	end
 end
diff --git a/sys/apps/Installer.lua b/sys/apps/Installer.lua
index 81c3caa..1d74733 100644
--- a/sys/apps/Installer.lua
+++ b/sys/apps/Installer.lua
@@ -8,7 +8,7 @@ local injector
 if not install.testing then
 	_ENV.BRANCH = 'develop-1.8'
 	local url ='https://raw.githubusercontent.com/kepler155c/opus/develop-1.8/sys/apis/injector.lua'
-	injector = load(http.get(url).readAll(), 'injector.lua', nil, _ENV)
+	injector = load(http.get(url).readAll(), 'injector.lua', nil, _ENV)()
 else
 	injector = _G.requireInjector
 end