diff --git a/kpse.dll b/kpse.dll
new file mode 100644
index 0000000..ef72e91
Binary files /dev/null and b/kpse.dll differ
diff --git a/luametalatex-init.lua b/luametalatex-init.lua
index f25436b..22d45ef 100644
--- a/luametalatex-init.lua
+++ b/luametalatex-init.lua
@@ -1,6 +1,6 @@
 do
   local ourpath = lua.startupfile:match('(.*[/\\])[^/\\]*%.lua$')
-  kpse = assert(package.loadlib(ourpath .. 'kpse.so', 'luaopen_kpse'))()
+  kpse = assert(package.loadlib(ourpath .. 'kpse.' .. (os.type == 'windows' and 'dll' or 'so'), 'luaopen_kpse'))()
 end
 local interaction
 do