diff --git a/.simplecov b/.simplecov
index b205ee26..770d7dc6 100644
--- a/.simplecov
+++ b/.simplecov
@@ -1,9 +1,9 @@
 require 'coveralls'
 
-SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
+SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter.new([
   SimpleCov::Formatter::HTMLFormatter,
   Coveralls::SimpleCov::Formatter
-]
+])
 SimpleCov.start do
   add_filter '/test'
 end