diff --git a/http/app.hpp b/http/app.hpp
index 1a7af83..eeb331e 100644
--- a/http/app.hpp
+++ b/http/app.hpp
@@ -63,7 +63,7 @@
         router.handle(req, asyncResp);
     }
 
-    DynamicRule& routeDynamic(std::string&& rule)
+    DynamicRule& routeDynamic(const std::string& rule)
     {
         return router.newRuleDynamic(rule);
     }