diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
index a4fdab7..1bbd287 100644
--- a/spec/spec_helper.cr
+++ b/spec/spec_helper.cr
@@ -2,6 +2,7 @@ require "spec"
 require "../src/queue"
 require "../src/server"
 require "../src/config"
+require "../src/main_fiber"
 
 class State
   @@hash = {} of String => String