diff --git a/ext/win32ole/win32ole_typelib.c b/ext/win32ole/win32ole_typelib.c
index fb68bebda8..84dca9e0e1 100644
--- a/ext/win32ole/win32ole_typelib.c
+++ b/ext/win32ole/win32ole_typelib.c
@@ -827,7 +827,7 @@ VALUE cWIN32OLE_TYPELIB;
 void
 Init_win32ole_typelib(void)
 {
-    cWIN32OLE_TYPELIB = rb_define_class_under(cWIN32OLE, "Typelib", rb_cObject);
+    cWIN32OLE_TYPELIB = rb_define_class_under(cWIN32OLE, "TypeLib", rb_cObject);
     rb_define_const(rb_cObject, "WIN32OLE_TYPELIB", cWIN32OLE_TYPELIB);
     rb_define_singleton_method(cWIN32OLE_TYPELIB, "typelibs", foletypelib_s_typelibs, 0);
     rb_define_alloc_func(cWIN32OLE_TYPELIB, foletypelib_s_allocate);