diff --git a/meta/libraries.json b/meta/libraries.json
index f328265..33783d8 100644
--- a/meta/libraries.json
+++ b/meta/libraries.json
@@ -12,5 +12,6 @@
         "Data",
         "Metaprogramming"
     ],
+    "std": [ "proposal" ],
     "cxxstd": "14"
 }