diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 720ab468ea..bbb75c49e8 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -140,6 +140,7 @@ function(add_gtest_executable TEST_NAME)
     set(result ${result} PARENT_SCOPE)
 endfunction()
 
+add_compile_options(-Wno-c++20-extensions)
 add_subdirectory(magic_number_division)
 add_subdirectory(space_filling_curve)
 add_subdirectory(conv_util)