diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index d5813706832d..971637859889 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -16,6 +16,8 @@ function(add_fmt_executable name)
   #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353
   if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND
       NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
+    target_compile_options(${name} PRIVATE -Wno-stringop-overflow)
+    # The linker flag is needed for LTO.
     target_link_libraries(${name} -Wno-stringop-overflow)
   endif ()
 endfunction()