diff --git a/src/app/profile/structure-add-member-modal/structure-add-member-modal.component.ts b/src/app/profile/structure-add-member-modal/structure-add-member-modal.component.ts
index 3b100b3a309ca76afc8929c3432370904c0ea56d..fbedc806a4f85e1be6e37f465ce91ae31b3ff3a3 100644
--- a/src/app/profile/structure-add-member-modal/structure-add-member-modal.component.ts
+++ b/src/app/profile/structure-add-member-modal/structure-add-member-modal.component.ts
@@ -47,7 +47,7 @@ export class StructureAddMemberModalComponent {
       return;
     }
     const user = new TempUser();
-    user.email = this.email;
+    user.email = this.email.toLowerCase();
 
     try {
       const res = await lastValueFrom(this.structureService.addOwnerToStructure(user, this.structure.structure._id));