diff --git a/mobile/src/common/interfaces/organization-list-item.interface.ts b/mobile/src/common/interfaces/organization-list-item.interface.ts
index a51456d18..d7ad2263a 100644
--- a/mobile/src/common/interfaces/organization-list-item.interface.ts
+++ b/mobile/src/common/interfaces/organization-list-item.interface.ts
@@ -10,5 +10,5 @@ export interface IOrganizationListItemWithNumberOfVolunteers extends IOrganizati
 
 export interface IOrganizationVolunteer extends IOrganizationListItem {
   volunteerId: string;
-  volunteerProfileId: string;
+  volunteerProfileId: string | null;
 }
diff --git a/mobile/src/services/volunteer/volunteer.service.ts b/mobile/src/services/volunteer/volunteer.service.ts
index 6c47ae6dc..23dba7d98 100644
--- a/mobile/src/services/volunteer/volunteer.service.ts
+++ b/mobile/src/services/volunteer/volunteer.service.ts
@@ -47,12 +47,14 @@ export const useJoinByAccessCodeMutation = () => {
             activeOrganization: {
               ...data.organization,
               volunteerId: data.id,
+              volunteerProfileId: null,
             },
             myOrganizations: [
               ...userProfile.myOrganizations,
               {
                 ...data.organization,
                 volunteerId: data.id,
+                volunteerProfileId: null,
               },
             ],
           });