Update extension.lua

1 files changed, 3 insertions, 3 deletions

diff --git a/xmake/modules/utils/archive/extension.lua b/xmake/modules/utils/archive/extension.lua
index ae8b97153..ca4c8abd8 100644
--- a/xmake/modules/utils/archive/extension.lua
+++ b/xmake/modules/utils/archive/extension.lua
@@ -23,15 +23,15 @@ import("core.base.hashset")
 
 -- get the archive extension
 function main(archivefile)
-
     local extension = ""
     local filename = path.filename(archivefile)
     local extensionset = hashset.from({".zip", ".7z", ".gz", ".xz", ".tgz", ".bz2", ".tar", ".tar.gz", ".tar.xz", ".tar.bz2", ".tar.lz"})
     local i = filename:lastof(".", true)
     if i then
         local p = filename:sub(1, i - 1):lastof(".", true)
-        if p and extensionset:has(filename:sub(p)) then i = p end
-        extension = filename:sub(i)
+        if p and extensionset:has(filename:sub(p)) then
+            extension = filename:sub(p)
+        end
     end
     return extension
 end