diff --git a/src/models/entities/Participant.ts b/src/models/entities/Participant.ts
index ba0c741..b854160 100644
--- a/src/models/entities/Participant.ts
+++ b/src/models/entities/Participant.ts
@@ -80,7 +80,7 @@ export abstract class Participant {
    */
   @Column({ nullable: true, default: "backend" })
   @IsOptional()
-  @IsEmail()
+  @IsString()
   created_via?: string;
 
   /**