diff --git a/lib/waterfoul.rb b/lib/waterfoul.rb
index b9da885..49ec8bc 100644
--- a/lib/waterfoul.rb
+++ b/lib/waterfoul.rb
@@ -4,7 +4,7 @@ require "waterfoul/skip_boot"
 require "waterfoul/helper"
 require "waterfoul/interrupt"
 require "waterfoul/mmu"
-require "Waterfoul/timer"
+require "waterfoul/timer"
 require "waterfoul/cpu"
 require "waterfoul/errors"
 require "waterfoul/sdl"
diff --git a/lib/waterfoul/cpu.rb b/lib/waterfoul/cpu.rb
index f732fe6..2a94ce9 100644
--- a/lib/waterfoul/cpu.rb
+++ b/lib/waterfoul/cpu.rb
@@ -1,6 +1,6 @@
 require 'waterfoul/instructions/opcode'
 require 'waterfoul/instructions/registers'
-require 'Waterfoul/instructions/timings'
+require 'waterfoul/instructions/timings'
 require 'waterfoul/instructions/jump'
 require 'waterfoul/instructions/load'
 require 'waterfoul/instructions/logic'