diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 896b0f3..8f662c2 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,10 +2,10 @@ require 'simplecov'
 require 'coveralls'
 # require 'byebug'
 
-SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
+SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter.new([
   SimpleCov::Formatter::HTMLFormatter,
   Coveralls::SimpleCov::Formatter
-]
+])
 SimpleCov.start
 
 require 'squib'