diff --git a/meta/libraries.json b/meta/libraries.json
index c9d7a3b..7b12a28 100644
--- a/meta/libraries.json
+++ b/meta/libraries.json
@@ -9,7 +9,8 @@
         "description": "The Boost.Function library contains a family of class templates that are function object wrappers.",
         "category": [
             "Function-objects"
-        ]
+        ],
+        "cxxstd": "03"
     },
     {
         "key": "functional/factory",
@@ -27,7 +28,8 @@
         "documentation": "factory/",
         "category": [
             "Function-objects"
-        ]
+        ],
+        "cxxstd": "03"
     },
     {
         "key": "functional/forward",
@@ -43,7 +45,8 @@
         "documentation": "forward/",
         "category": [
             "Function-objects"
-        ]
+        ],
+        "cxxstd": "03"
     },
     {
         "key": "functional/overloaded_function",
@@ -59,6 +62,7 @@
         "documentation": "overloaded_function/",
         "category": [
             "Function-objects"
-        ]
+        ],
+        "cxxstd": "03"
     }
 ]