diff --git a/CMakeLists.txt b/CMakeLists.txt
index db5b89db3d..2be056ec4e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,36 +11,29 @@ if(NOT DEFINED TD_SOURCE_DIR)
 endif()
 
 SET(TD_COMMUNITY_DIR ${PROJECT_SOURCE_DIR})
-
 set(TD_SUPPORT_DIR "${TD_SOURCE_DIR}/cmake")
 set(TD_CONTRIB_DIR "${TD_SOURCE_DIR}/contrib")
 
 include(${TD_SUPPORT_DIR}/cmake.platform)
-include(${TD_SUPPORT_DIR}/cmake.define)
 include(${TD_SUPPORT_DIR}/cmake.options)
+include(${TD_SUPPORT_DIR}/cmake.define)
 include(${TD_SUPPORT_DIR}/cmake.version)
-
-# contrib
-add_subdirectory(contrib)
+include(${TD_SUPPORT_DIR}/cmake.install)
 
 set_property(GLOBAL PROPERTY GLOBAL_DEPENDS_NO_CYCLES OFF)
 
-# api
 add_library(api INTERFACE)
 target_include_directories(api INTERFACE "include/client")
 
-# src
-if(${BUILD_TEST})
-  include(CTest)
-  enable_testing()
-endif(${BUILD_TEST})
-
+add_subdirectory(contrib)
 add_subdirectory(source)
 add_subdirectory(tools)
 add_subdirectory(utils)
-add_subdirectory(examples/c)
 add_subdirectory(tests)
-include(${TD_SUPPORT_DIR}/cmake.install)
-
-# docs
 add_subdirectory(docs/doxgen)
+
+if(${BUILD_TEST})
+  include(CTest)
+  enable_testing()
+  add_subdirectory(examples/c)
+endif(${BUILD_TEST})
\ No newline at end of file