diff --git a/src/app/signup/core/registration.model.ts b/src/app/signup/core/registration.model.ts
index 68bad52de06ca9ecd879695029be8b8dd8f5095d..0473dc82961b8b62306c277ac87e4910a2da6b2a 100644
--- a/src/app/signup/core/registration.model.ts
+++ b/src/app/signup/core/registration.model.ts
@@ -30,7 +30,7 @@ export class RegistrationAdapter {
       first_name: obj.firstName,
       last_name: obj.lastName,
       dateOfBirth : obj.dateOfBirth,
-      phoneNumber : obj.phoneNumber,
+      phone_number : obj.phoneNumber,
     }
   }
 }