diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5caab4f..063289c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,9 +35,11 @@ endif()
 if(CMAKE_CXX_STANDARD LESS 11)
     message(FATAL_ERROR "CMAKE_CXX_STANDARD is less than 11, ghc::filesystem only works with C++11 and above.")
 endif()
-message(STATUS "System name: ${CMAKE_SYSTEM_NAME}")
-message(STATUS "Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
-message(STATUS "CMAKE_CXX_COMPILE_FEATURES: ${CMAKE_CXX_COMPILE_FEATURES}")
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+    message(STATUS "System name: ${CMAKE_SYSTEM_NAME}")
+    message(STATUS "Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
+    message(STATUS "CMAKE_CXX_COMPILE_FEATURES: ${CMAKE_CXX_COMPILE_FEATURES}")
+endif()
 
 add_library(ghc_filesystem INTERFACE)
 add_library(ghcFilesystem::ghc_filesystem ALIAS ghc_filesystem)