diff --git a/Chaos/Cipher/Arc4.hpp b/Chaos/Cipher/Arc4/Arc4.hpp
similarity index 100%
rename from Chaos/Cipher/Arc4.hpp
rename to Chaos/Cipher/Arc4/Arc4.hpp
diff --git a/ChaosTests/Cipher/Arc4Tests.cpp b/ChaosTests/Cipher/Arc4Tests.cpp
index 4eb786e..3e2350c 100644
--- a/ChaosTests/Cipher/Arc4Tests.cpp
+++ b/ChaosTests/Cipher/Arc4Tests.cpp
@@ -1,6 +1,6 @@
 #include <gtest/gtest.h>
 
-#include "Cipher/Arc4.hpp"
+#include "Cipher/Arc4/Arc4.hpp"
 
 using namespace Chaos::Cipher::Arc4;