diff --git a/db/migrations/20240819195341_ery_extension_cascade.sql b/db/migrations/20240819195341_ery_extension_cascade.sql
new file mode 100644
index 0000000..b5bface
--- /dev/null
+++ b/db/migrations/20240819195341_ery_extension_cascade.sql
@@ -0,0 +1,14 @@
+-- migrate:up
+ALTER TABLE ery_extension DROP CONSTRAINT ery_extension_endpoint_id_fkey;
+
+ALTER TABLE
+    ery_extension
+ADD CONSTRAINT
+    ry_extension_endpoint_id_fkey
+FOREIGN KEY
+    (endpoint_id)
+REFERENCES
+    ps_endpoints(sid)
+ON DELETE CASCADE;
+
+-- migrate:down
diff --git a/docs/swagger.yaml b/docs/swagger.yaml
index 11d0e48..b6dc4bc 100644
--- a/docs/swagger.yaml
+++ b/docs/swagger.yaml
@@ -165,14 +165,14 @@ paths:
       summary: Create a new endpoint.
       tags:
       - endpoints
-  /endpoints/{id}:
+  /endpoints/{sid}:
     delete:
       parameters:
-      - description: ID of the endpoint to be deleted
+      - description: Sid of the endpoint to be deleted
         in: path
-        name: id
+        name: sid
         required: true
-        type: string
+        type: integer
       responses:
         "204":
           description: No Content
@@ -183,7 +183,6 @@ paths:
       summary: Delete an endpoint and its associated resources.
       tags:
       - endpoints
-  /endpoints/{sid}:
     get:
       parameters:
       - description: Requested endpoint's sid
diff --git a/internal/handler/endpoint.go b/internal/handler/endpoint.go
index 9cf0384..3e286f6 100644
--- a/internal/handler/endpoint.go
+++ b/internal/handler/endpoint.go
@@ -63,7 +63,7 @@ func (e *Endpoint) Router() chi.Router {
 	r.Post("/", e.create)
 	r.Get("/", e.list)
 	r.Get("/{sid}", e.get)
-	r.Delete("/{id}", e.delete)
+	r.Delete("/{sid}", e.delete)
 
 	return r
 }
@@ -348,15 +348,16 @@ func (e *Endpoint) create(w http.ResponseWriter, r *http.Request) {
 }
 
 // @Summary Delete an endpoint and its associated resources.
-// @Param id path string true "ID of the endpoint to be deleted"
+// @Param sid path int true "Sid of the endpoint to be deleted"
 // @Success 204
 // @Failure 400
 // @Failure 500
 // @Tags endpoints
-// @Router /endpoints/{id} [delete]
+// @Router /endpoints/{sid} [delete]
 func (e *Endpoint) delete(w http.ResponseWriter, r *http.Request) {
-	id := chi.URLParam(r, "id")
-	if id == "" {
+	urlSid := chi.URLParam(r, "sid")
+	sid, err := strconv.Atoi(urlSid)
+	if err != nil || sid <= 0 {
 		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
@@ -370,7 +371,7 @@ func (e *Endpoint) delete(w http.ResponseWriter, r *http.Request) {
 
 	queries := sqlc.New(tx)
 
-	err = queries.DeleteEndpoint(r.Context(), id)
+	id, err := queries.DeleteEndpoint(r.Context(), int32(sid))
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		return
diff --git a/internal/sqlc/queries.sql.go b/internal/sqlc/queries.sql.go
index 95da9b7..d5ccc69 100644
--- a/internal/sqlc/queries.sql.go
+++ b/internal/sqlc/queries.sql.go
@@ -40,13 +40,15 @@ func (q *Queries) DeleteAuth(ctx context.Context, id string) error {
 	return err
 }
 
-const deleteEndpoint = `-- name: DeleteEndpoint :exec
-DELETE FROM ps_endpoints WHERE id = $1
+const deleteEndpoint = `-- name: DeleteEndpoint :one
+DELETE FROM ps_endpoints WHERE sid = $1 RETURNING id
 `
 
-func (q *Queries) DeleteEndpoint(ctx context.Context, id string) error {
-	_, err := q.db.Exec(ctx, deleteEndpoint, id)
-	return err
+func (q *Queries) DeleteEndpoint(ctx context.Context, sid int32) (string, error) {
+	row := q.db.QueryRow(ctx, deleteEndpoint, sid)
+	var id string
+	err := row.Scan(&id)
+	return id, err
 }
 
 const getEndpointByExtension = `-- name: GetEndpointByExtension :one
diff --git a/queries.sql b/queries.sql
index 44c9c68..6f48293 100644
--- a/queries.sql
+++ b/queries.sql
@@ -17,8 +17,8 @@ VALUES
     ($1, $2, $1, $1, $3, 'all', $4, $5)
 RETURNING sid;
 
--- name: DeleteEndpoint :exec
-DELETE FROM ps_endpoints WHERE id = $1;
+-- name: DeleteEndpoint :one
+DELETE FROM ps_endpoints WHERE sid = $1 RETURNING id;
 
 -- name: DeleteAOR :exec
 DELETE FROM ps_aors WHERE id = $1;