diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9d7c553..83865a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,15 +40,15 @@ list (APPEND sources
     stream/rabbit.hpp
     stream/rc4.cpp
     stream/rc4.hpp
-    stream/rc5.cpp
-    stream/rc5.hpp
-    stream/rc6.cpp
-    stream/rc6.hpp
     stream/salsa.cpp
     stream/salsa.hpp
 
-    block/speck.hpp
+    block/rc5.cpp
+    block/rc5.hpp
+    block/rc6.cpp
+    block/rc6.hpp
     block/speck.cpp
+    block/speck.hpp
     block/tea.cpp
     block/tea.hpp
     block/xtea.cpp
diff --git a/stream/rc5.cpp b/block/rc5.cpp
similarity index 100%
rename from stream/rc5.cpp
rename to block/rc5.cpp
diff --git a/stream/rc5.hpp b/block/rc5.hpp
similarity index 100%
rename from stream/rc5.hpp
rename to block/rc5.hpp
diff --git a/stream/rc6.cpp b/block/rc6.cpp
similarity index 100%
rename from stream/rc6.cpp
rename to block/rc6.cpp
diff --git a/stream/rc6.hpp b/block/rc6.hpp
similarity index 100%
rename from stream/rc6.hpp
rename to block/rc6.hpp