diff --git a/share/cmake/extract_flags.cmake b/share/cmake/extract_flags.cmake
index 60e4b453..dd4edffc 100644
--- a/share/cmake/extract_flags.cmake
+++ b/share/cmake/extract_flags.cmake
@@ -60,7 +60,9 @@ macro(extract_flags)
   endforeach()
 
   get_property_recursive(cxx_features TARGET ${target} PROPERTY INTERFACE_COMPILE_FEATURES)
-  if(cxx_std_20 IN_LIST cxx_features)
+  if(cxx_std_23 IN_LIST cxx_features)
+    set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -std=c++2b")
+  elseif(cxx_std_20 IN_LIST cxx_features)
     set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -std=c++20")
   elseif(cxx_std_17 IN_LIST cxx_features)
     set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -std=c++17")