diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index f0f616e..8a81a2a 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -40,7 +40,6 @@ if(NOT MSVC)
 
 endif()
 
-add_subdirectory(astyle)
 
 # if(UNIX OR MINGW)