diff --git a/frontend/src/api/leaders.ts b/frontend/src/api/leaders.ts
index bffa38e..3090db2 100644
--- a/frontend/src/api/leaders.ts
+++ b/frontend/src/api/leaders.ts
@@ -13,7 +13,7 @@ export interface Leader {
   last_name: string
   email: string
   limit_group: number
-  count_group: number
+  count_groups: number
   mode: number
 }
 
@@ -32,10 +32,12 @@ export const getLeaders = (
   )
 
 export const createLeader = (payload: Leader) =>
-  axiosInstance.post('http://127.0.0.1:5000/api/coordinator/project_supervisor/', payload)
-
-
-export const deleteLeader = (payload: Number) =>
-  axiosInstance.delete(
-    'http://127.0.0.1:5000/api/coordinator/project_supervisor/'+payload.toString()+'/',
+  axiosInstance.post(
+    'http://127.0.0.1:5000/api/coordinator/project_supervisor/',
+    payload,
+  )
+
+export const deleteLeader = (id: number) =>
+  axiosInstance.delete(
+    `http://127.0.0.1:5000/api/coordinator/project_supervisor/${id}/`,
   )