diff --git a/_examples/golang-basics/example.gen.go b/_examples/golang-basics/example.gen.go
index a2f25c2..2522bd1 100644
--- a/_examples/golang-basics/example.gen.go
+++ b/_examples/golang-basics/example.gen.go
@@ -370,14 +370,14 @@ func (s *exampleServiceServer) ServeHTTP(w http.ResponseWriter, r *http.Request)
 	case "/rpc/ExampleService/LogEvent":
 		handler = s.serveLogEventJSON
 	default:
-		err := ErrWebrpcBadRoute.WithCausef("no WebRPC method defined for path %v", r.URL.Path)
+		err := ErrWebrpcBadRoute.WithCausef("no webrpc method defined for path %v", r.URL.Path)
 		s.sendErrorJSON(w, r, err)
 		return
 	}
 
 	if r.Method != "POST" {
 		w.Header().Add("Allow", "POST") // RFC 9110.
-		err := ErrWebrpcBadMethod.WithCausef("unsupported method %v (only POST is allowed)", r.Method)
+		err := ErrWebrpcBadMethod.WithCausef("unsupported HTTP method %v (only POST is allowed)", r.Method)
 		s.sendErrorJSON(w, r, err)
 		return
 	}
diff --git a/_examples/golang-imports/api.gen.go b/_examples/golang-imports/api.gen.go
index 3a7158f..119edd7 100644
--- a/_examples/golang-imports/api.gen.go
+++ b/_examples/golang-imports/api.gen.go
@@ -247,14 +247,14 @@ func (s *exampleAPIServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	case "/rpc/ExampleAPI/GetUsers":
 		handler = s.serveGetUsersJSON
 	default:
-		err := ErrWebrpcBadRoute.WithCausef("no WebRPC method defined for path %v", r.URL.Path)
+		err := ErrWebrpcBadRoute.WithCausef("no webrpc method defined for path %v", r.URL.Path)
 		s.sendErrorJSON(w, r, err)
 		return
 	}
 
 	if r.Method != "POST" {
 		w.Header().Add("Allow", "POST") // RFC 9110.
-		err := ErrWebrpcBadMethod.WithCausef("unsupported method %v (only POST is allowed)", r.Method)
+		err := ErrWebrpcBadMethod.WithCausef("unsupported HTTP method %v (only POST is allowed)", r.Method)
 		s.sendErrorJSON(w, r, err)
 		return
 	}
diff --git a/server.go.tmpl b/server.go.tmpl
index b2742d4..3a85f86 100644
--- a/server.go.tmpl
+++ b/server.go.tmpl
@@ -54,14 +54,14 @@ func (s *{{$serviceName}}) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		handler = s.serve{{$method.Name | firstLetterToUpper}}JSON{{if $method.StreamOutput}}Stream{{end}}
 	{{- end}}
 	default:
-		err := ErrWebrpcBadRoute.WithCausef("no WebRPC method defined for path %v", r.URL.Path)
+		err := ErrWebrpcBadRoute.WithCausef("no webrpc method defined for path %v", r.URL.Path)
 		s.sendErrorJSON(w, r, err)
 		return
 	}
 
 	if r.Method != "POST" {
 		w.Header().Add("Allow", "POST") // RFC 9110.
-		err := ErrWebrpcBadMethod.WithCausef("unsupported method %v (only POST is allowed)", r.Method)
+		err := ErrWebrpcBadMethod.WithCausef("unsupported HTTP method %v (only POST is allowed)", r.Method)
 		s.sendErrorJSON(w, r, err)
 		return
 	}