diff --git a/os/libs/packages.lua b/os/libs/packages.lua
index 27b00b2..ecb3394 100644
--- a/os/libs/packages.lua
+++ b/os/libs/packages.lua
@@ -4,7 +4,7 @@ local uid = ulib.uid(SESSION.user)
 
 packages._cache = function(y)
 	local p = vfs.ospath(y).."/packages.cache"
-	if y:find("^os://") then
+	if y:find("^os:/") then
 		p = __api__.tmpdir.."/packages.cache"
 	end
 	local f = io.open(p, "w")
@@ -44,7 +44,7 @@ packages.list = function(paths)
 	--std.f(__ROOT__.."/system/packages.json")
 	for k,v in pairs(paths) do
 		local osp = vfs.ospath(v.."/packages.cache")
-		if v:find("^os://") then
+		if v:find("^os:/") then
 			osp = __api__.tmpdir.."/packages.cache"
 		end
 		if  ulib.exists(osp) == false then