diff --git a/data/core/init.lua b/data/core/init.lua
index 8a8537d2..1fcded3b 100644
--- a/data/core/init.lua
+++ b/data/core/init.lua
@@ -70,11 +70,11 @@ local function project_scan_thread()
     return a.filename < b.filename
   end
 
-  local function get_files(path, t)
+  local function get_files(root, path, t)
     coroutine.yield()
     t = t or {}
     local size_limit = config.file_size_limit * 10e5
-    local all = system.list_dir(path) or {}
+    local all = system.list_dir(root .. path) or {}
     local dirs, files = {}, {}
 
     local entries_count = 0
@@ -82,7 +82,7 @@ local function project_scan_thread()
     for _, file in ipairs(all) do
       if not common.match_pattern(file, config.ignore_files) then
         local file = path .. PATHSEP .. file
-        local info = system.get_file_info(file)
+        local info = system.get_file_info(root .. file)
         if info and info.size < size_limit then
           info.filename = file
           table.insert(info.type == "dir" and dirs or files, info)
@@ -96,7 +96,7 @@ local function project_scan_thread()
     for _, f in ipairs(dirs) do
       table.insert(t, f)
       if entries_count <= max_entries then
-        local subdir_t, subdir_count = get_files(f.filename, t)
+        local subdir_t, subdir_count = get_files(root, f.filename, t)
         entries_count = entries_count + subdir_count
       end
     end
@@ -114,7 +114,7 @@ local function project_scan_thread()
     -- different
     for i = 1, #core.project_directories do
       local dir = core.project_directories[i]
-      local t, entries_count = get_files(dir.name)
+      local t, entries_count = get_files(dir.name, "")
       if diff_files(dir.files, t) then
         if entries_count > config.max_project_files then
           core.status_view:show_message("!", style.accent,
@@ -255,10 +255,11 @@ function core.init()
   core.docs = {}
   core.threads = setmetatable({}, { __mode = "k" })
   local dir_path = system.absolute_path(".")
+  local dir_name = dir_path:match("[^\\/]+$")
   core.project_directories = {
     {
       name = dir_path,
-      item = {filename = dir_path, type = "dir", top_dir = true},
+      item = {filename = dir_name, type = "dir"},
       files = {},
     }
   }
diff --git a/data/plugins/treeview.lua b/data/plugins/treeview.lua
index f17a7ae8..0bfe8b9e 100644
--- a/data/plugins/treeview.lua
+++ b/data/plugins/treeview.lua
@@ -9,7 +9,7 @@ local View = require "core.view"
 config.treeview_size = 200 * SCALE
 
 local function get_depth(filename)
-  local n = 1
+  local n = 0
   for sep in filename:gmatch("[\\/]") do
     n = n + 1
   end
@@ -28,16 +28,11 @@ function TreeView:new()
   self.last = {}
 end
 
-
-local function relative_filename(filename, dirname)
-  local n = #dirname
-  if filename:sub(1, n) == dirname then
-    return filename:sub(n + 1):match('[/\\](.*)')
-  end
+local function strip_leading_path(filename)
+    return filename:sub(2)
 end
 
 
-
 function TreeView:get_cached(item, dirname)
   local dir_cache = self.cache[dirname]
   if not dir_cache then
@@ -47,17 +42,11 @@ function TreeView:get_cached(item, dirname)
   local t = dir_cache[item.filename]
   if not t then
     t = {}
-    local rel = relative_filename(item.filename, dirname)
-    -- FIXME: rel should never be nil here. to be verified.
-    if item.top_dir then
-      t.filename = item.filename:match("[^\\/]+$")
-      t.depth = 0
-    else
-      t.filename = rel or item.filename
-      t.depth = get_depth(t.filename)
-    end
-    t.abs_filename = item.filename
-    t.name = t.filename:match("[^\\/]+$")
+    local basename = item.filename:match("[^\\/]+$")
+    t.filename = item.filename:match('^[/\\]') and strip_leading_path(item.filename) or basename
+    t.depth = get_depth(item.filename)
+    t.abs_filename = dirname .. item.filename
+    t.name = basename
     t.type = item.type
     dir_cache[item.filename] = t
   end
@@ -122,8 +111,7 @@ function TreeView:each_item()
           else
             local depth = cached.depth
             while i <= #dir.files do
-              local filename = relative_filename(dir.files[i].filename, dir.name)
-              if get_depth(filename) <= depth then break end
+              if get_depth(dir.files[i].filename) <= depth then break end
               i = i + 1
             end
             cached.skip = i
@@ -153,7 +141,7 @@ function TreeView:on_mouse_pressed(button, x, y)
     self.hovered_item.expanded = not self.hovered_item.expanded
   else
     core.try(function()
-      core.root_view:open_doc(core.open_doc(self.hovered_item.filename))
+      core.root_view:open_doc(core.open_doc(self.hovered_item.abs_filename))
     end)
   end
 end