diff --git a/rake_tasks/crazy_fun/main.rb b/rake_tasks/crazy_fun/main.rb
index 4174f5d88afac..e0328a8d75045 100644
--- a/rake_tasks/crazy_fun/main.rb
+++ b/rake_tasks/crazy_fun/main.rb
@@ -147,7 +147,7 @@ def leave
 
   def parse_file(file_name)
     @file_name = file_name
-    data = IO.read(file_name)
+    data = File.read(file_name)
     parse(data)
   end