diff --git a/library/include/larra/jid.hpp b/library/include/larra/jid.hpp
index bd7408f..92ed2cd 100644
--- a/library/include/larra/jid.hpp
+++ b/library/include/larra/jid.hpp
@@ -13,12 +13,12 @@ struct BareJid {
   friend auto ToString(const BareJid& jid) -> std::string;
 
   template <typename Self>
-  [[nodiscard]] auto Username(this Self&& self, std::string username) -> BareJid {
+  [[nodiscard]] constexpr auto Username(this Self&& self, std::string username) -> BareJid {
     return utils::FieldSetHelper::With<"username", BareJid>(std::forward<Self>(self), std::move(username));
   }
 
   template <typename Self>
-  [[nodiscard]] auto Server(this Self&& self, std::string server) -> BareJid {
+  [[nodiscard]] constexpr auto Server(this Self&& self, std::string server) -> BareJid {
     return utils::FieldSetHelper::With<"server", BareJid>(std::forward<Self>(self), std::move(server));
   }
 };
@@ -30,12 +30,12 @@ struct BareResourceJid {
   friend auto ToString(const BareResourceJid& jid) -> std::string;
 
   template <typename Self>
-  [[nodiscard]] auto Server(this Self&& self, std::string server) -> BareResourceJid {
+  [[nodiscard]] constexpr auto Server(this Self&& self, std::string server) -> BareResourceJid {
     return utils::FieldSetHelper::With<"server", BareResourceJid>(std::forward<Self>(self), std::move(server));
   }
 
   template <typename Self>
-  [[nodiscard]] auto Resource(this Self&& self, std::string resource) -> BareResourceJid {
+  [[nodiscard]] constexpr auto Resource(this Self&& self, std::string resource) -> BareResourceJid {
     return utils::FieldSetHelper::With<"resource", BareResourceJid>(std::forward<Self>(self), std::move(resource));
   }
 };
@@ -48,17 +48,17 @@ struct FullJid {
   friend auto ToString(const FullJid& jid) -> std::string;
 
   template <typename Self>
-  [[nodiscard]] auto Username(this Self&& self, std::string username) -> FullJid {
+  [[nodiscard]] constexpr auto Username(this Self&& self, std::string username) -> FullJid {
     return utils::FieldSetHelper::With<"username", FullJid>(std::forward<Self>(self), std::move(username));
   };
 
   template <typename Self>
-  [[nodiscard]] auto Server(this Self&& self, std::string server) -> FullJid {
+  [[nodiscard]] constexpr auto Server(this Self&& self, std::string server) -> FullJid {
     return utils::FieldSetHelper::With<"server", FullJid>(std::forward<Self>(self), std::move(server));
   };
 
   template <typename Self>
-  [[nodiscard]] auto Resource(this Self&& self, std::string resource) -> FullJid {
+  [[nodiscard]] constexpr auto Resource(this Self&& self, std::string resource) -> FullJid {
     return utils::FieldSetHelper::With<"resource", FullJid>(std::forward<Self>(self), std::move(resource));
   };
 };