2 files changed, 4 insertions, 4 deletions

diff --git a/src/luarocks/fetch.lua b/src/luarocks/fetch.lua
index 074b0e45..4031ec66 100644
--- a/src/luarocks/fetch.lua
+++ b/src/luarocks/fetch.lua
@@ -155,9 +155,9 @@ function fetch.fetch_and_unpack_rock(rock_file, dest)
    end
    local ok, err = fs.change_dir(unpack_dir)
    if not ok then return nil, err end
-   ok = fs.unzip(rock_file)
+   ok, err = fs.unzip(rock_file)
    if not ok then
-      return nil, "Failed unpacking rock file: " .. rock_file
+      return nil, "Failed unpacking rock file: " .. rock_file .. ": " .. err
    end
    fs.pop_dir()
    return unpack_dir
diff --git a/src/luarocks/manif.lua b/src/luarocks/manif.lua
index d6980299..0bef6f13 100644
--- a/src/luarocks/manif.lua
+++ b/src/luarocks/manif.lua
@@ -132,12 +132,12 @@ function manif.load_manifest(repo_url, lua_version)
       fs.change_dir(dirname)
       local nozip = pathname:match("(.*)%.zip$")
       fs.delete(nozip)
-      local ok = fs.unzip(pathname)
+      local ok, err = fs.unzip(pathname)
       fs.pop_dir()
       if not ok then
          fs.delete(pathname)
          fs.delete(pathname..".timestamp")
-         return nil, "Failed extracting manifest file"
+         return nil, "Failed extracting manifest file: " .. err
       end
       pathname = nozip
    end