diff --git a/sys/apps/Installer.lua b/sys/apps/Installer.lua
index 0f88210..da576a5 100644
--- a/sys/apps/Installer.lua
+++ b/sys/apps/Installer.lua
@@ -6,8 +6,8 @@ local os      = _G.os
 
 local injector
 if not install.testing then
-	_G.OPUS_BRANCH = 'develop-1.8'
-	local url ='https://raw.githubusercontent.com/kepler155c/opus/develop-1.8/sys/apis/injector.lua'
+	_G.OPUS_BRANCH = 'master-1.8'
+	local url ='https://raw.githubusercontent.com/kepler155c/opus/master-1.8/sys/apis/injector.lua'
 	injector = load(http.get(url).readAll(), 'injector.lua', nil, _ENV)()
 else
 	injector = _G.requireInjector
diff --git a/sys/boot/opus.boot b/sys/boot/opus.boot
index 32c7010..ef0e8ed 100644
--- a/sys/boot/opus.boot
+++ b/sys/boot/opus.boot
@@ -2,7 +2,7 @@
 local fs     = _G.fs
 local http   = _G.http
 
-_G.OPUS_BRANCH = 'develop-1.8'
+_G.OPUS_BRANCH = 'master-1.8'
 local GIT_REPO = 'kepler155c/opus/' .. _G.OPUS_BRANCH
 local BASE     = 'https://raw.githubusercontent.com/' .. GIT_REPO
 
diff --git a/sys/extensions/6.tl3.lua b/sys/extensions/6.tl3.lua
index 4c0e763..aab51e2 100644
--- a/sys/extensions/6.tl3.lua
+++ b/sys/extensions/6.tl3.lua
@@ -129,6 +129,13 @@ function turtle.getHeadingInfo(heading)
 	return headings[heading]
 end
 
+-- hackish way to support unlimited fuel
+if type(turtle.getFuelLevel()) ~= 'number' then
+	function turtle.getFuelLevel()
+		return 10000000
+	end
+end
+
 -- [[ Basic turtle actions ]] --
 local function inventoryAction(fn, name, qty)
 	local slots = turtle.getFilledSlots()