1 files changed, 1 insertions, 1 deletions

diff --git a/src/luarocks/fs/win32/tools.lua b/src/luarocks/fs/win32/tools.lua
index 5a0f41f3..c3b5398e 100644
--- a/src/luarocks/fs/win32/tools.lua
+++ b/src/luarocks/fs/win32/tools.lua
@@ -279,7 +279,7 @@ end
 -- additional arguments.
 -- @return boolean: true on success, false on failure.
 function zip(zipfile, ...)
-   return fs.execute("7z a", zipfile, ...)
+   return fs.execute("7z a -tzip", zipfile, ...)
 end
 
 --- Uncompress files from a .zip archive.