diff --git a/include/module.modulemap b/include/module.modulemap
index 8d6d200af..04b38dc17 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -483,6 +483,8 @@ module std [system] {
   module __undef___deallocate { header "__undef___deallocate" export * }
 
   module experimental {
+    requires cplusplus11
+
     module algorithm {
       header "experimental/algorithm"
       export *