diff --git a/cmake/Config.cmake b/cmake/Config.cmake
index cd10b98a..58ee8ee8 100644
--- a/cmake/Config.cmake
+++ b/cmake/Config.cmake
@@ -86,7 +86,7 @@ if(MSVC)
     endif()
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     set(SFML_COMPILER_CLANG 1)
-elseif(CMAKE_COMPILER_IS_GNUCXX)
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     set(SFML_COMPILER_GCC 1)
 
     execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "--version" OUTPUT_VARIABLE GCC_COMPILER_VERSION)