diff --git a/server/internal/http/legacy/wstobackend.go b/server/internal/http/legacy/wstobackend.go
index 1922ad3d..a68105d6 100644
--- a/server/internal/http/legacy/wstobackend.go
+++ b/server/internal/http/legacy/wstobackend.go
@@ -49,11 +49,14 @@ func (s *session) wsToBackend(msg []byte) error {
 		if request.DisplayName != "" {
 			s.name = request.DisplayName
 
-			err = s.apiReq(http.MethodPost, "/api/profile", map[string]any{
-				"name": request.DisplayName,
-			}, nil)
-			if err != nil {
-				return err
+			// Update display name if it's different
+			if s.name == "" || s.name != request.DisplayName {
+				err = s.apiReq(http.MethodPost, "/api/profile", map[string]any{
+					"name": request.DisplayName,
+				}, nil)
+				if err != nil {
+					return err
+				}
 			}
 		}