diff --git a/controllers/participant.js b/controllers/participant.js
index 99807871c3bb6766090c08c13ba2cb05252c5ebd..581e3e36db1a3752ceb99e00a4ab34c90c87fa7f 100644
--- a/controllers/participant.js
+++ b/controllers/participant.js
@@ -70,7 +70,7 @@ exports.createParticipant = async (req, res, next) => {
       reqName,
     );
     if (existingParticipant) {
-      throw createParticipantIsAlreadyExistError;
+      throw createParticipantIsAlreadyExistError();
     }
 
     let passwordEncrypted = null;