diff --git a/include/boost/beast/core/impl/error.ipp b/include/boost/beast/core/impl/error.ipp
index 0b301577..4cf43d76 100644
--- a/include/boost/beast/core/impl/error.ipp
+++ b/include/boost/beast/core/impl/error.ipp
@@ -26,6 +26,9 @@ public:
         return "boost.beast";
     }
 
+    error_codes() : error_category(0x002f6e94401c6e8bu)  {}
+
+
     BOOST_BEAST_DECL
     std::string
     message(int ev) const override
@@ -62,6 +65,9 @@ public:
         return "boost.beast";
     }
 
+    error_conditions() : error_category(0x3dd0b0ce843c5b10u)  {}
+
+
     BOOST_BEAST_DECL
     std::string
     message(int cv) const override
diff --git a/include/boost/beast/http/impl/error.ipp b/include/boost/beast/http/impl/error.ipp
index 439b691b..c1ee2366 100644
--- a/include/boost/beast/http/impl/error.ipp
+++ b/include/boost/beast/http/impl/error.ipp
@@ -27,6 +27,8 @@ public:
         return "beast.http";
     }
 
+    http_error_category() : error_category(0x964627da815bf210u)  {}
+
     std::string
     message(int ev) const override
     {
diff --git a/include/boost/beast/websocket/impl/error.ipp b/include/boost/beast/websocket/impl/error.ipp
index 68296dc4..7256a464 100644
--- a/include/boost/beast/websocket/impl/error.ipp
+++ b/include/boost/beast/websocket/impl/error.ipp
@@ -20,6 +20,9 @@ namespace detail {
 class error_codes : public error_category
 {
 public:
+
+    error_codes() : error_category(0x065d7edd7687edafu )  {}
+
     const char*
     name() const noexcept override
     {
@@ -123,6 +126,9 @@ public:
         return "boost.beast.websocket";
     }
 
+    error_conditions() : error_category(0x7a8de5d61799ce9eu)  {}
+
+
     std::string
     message(int cv) const override
     {