diff --git a/cmake/modules/BuildFIO.cmake b/cmake/modules/BuildFIO.cmake
index 3a0694b543e..49fcfb31d97 100644
--- a/cmake/modules/BuildFIO.cmake
+++ b/cmake/modules/BuildFIO.cmake
@@ -37,6 +37,7 @@ function(build_fio)
   add_library(fio INTERFACE IMPORTED)
   add_dependencies(fio fio_ext)
   set_target_properties(fio PROPERTIES
+    CXX_EXTENSIONS ON
     INTERFACE_INCLUDE_DIRECTORIES ${source_dir}
-    INTERFACE_COMPILE_OPTIONS "-include;${source_dir}/config-host.h;$<$<COMPILE_LANGUAGE:C>:-std=gnu99>$<$<COMPILE_LANGUAGE:CXX>:-std=gnu++17>")
+    INTERFACE_COMPILE_OPTIONS "-include;${source_dir}/config-host.h;$<$<COMPILE_LANGUAGE:C>:-std=gnu99>")
 endfunction()