diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 6438e6e..f8f8afc 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -8,6 +8,7 @@
 require "webmock/rspec"
 require "rspec/its"
 require "timecop"
+require "tempfile"
 require "evil/client"
 require "evil/client/rspec"