diff --git a/src/data/api/document.api.ts b/src/data/api/document.api.ts
index fb59770..2ced129 100644
--- a/src/data/api/document.api.ts
+++ b/src/data/api/document.api.ts
@@ -3,9 +3,15 @@
 const DOCUMENT_PDF_URL =
   'https://n8n.app.lci.ulsa.mx/webhook/62ca84ec-0adb-4006-aba1-32282d27d434'
 
+const DOCUMENT_PDF_ASIGNATURA_URL =
+  'https://n8n.app.lci.ulsa.mx/webhook/041a68be-7568-46d0-bc08-09ded12d017d'
+
 interface GeneratePdfParams {
   plan_estudio_id: string
 }
+interface GeneratePdfParamsAsignatura {
+  asignatura_id: string
+}
 
 export async function fetchPlanPdf({
   plan_estudio_id,
@@ -25,3 +31,22 @@ export async function fetchPlanPdf({
   // n8n devuelve el archivo → lo tratamos como blob
   return await response.blob()
 }
+
+export async function fetchAsignaturaPdf({
+  asignatura_id,
+}: GeneratePdfParamsAsignatura): Promise<Blob> {
+  const response = await fetch(DOCUMENT_PDF_ASIGNATURA_URL, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({ asignatura_id }),
+  })
+
+  if (!response.ok) {
+    throw new Error('Error al generar el PDF')
+  }
+
+  // n8n devuelve el archivo → lo tratamos como blob
+  return await response.blob()
+}
diff --git a/src/routes/planes/$planId/asignaturas/$asignaturaId/documento.tsx b/src/routes/planes/$planId/asignaturas/$asignaturaId/documento.tsx
index 2777863..452cf57 100644
--- a/src/routes/planes/$planId/asignaturas/$asignaturaId/documento.tsx
+++ b/src/routes/planes/$planId/asignaturas/$asignaturaId/documento.tsx
@@ -2,7 +2,7 @@ import { createFileRoute, useParams } from '@tanstack/react-router'
 import { useCallback, useEffect, useState } from 'react'
 
 import { DocumentoSEPTab } from '@/components/asignaturas/detalle/DocumentoSEPTab'
-import { fetchPlanPdf } from '@/data/api/document.api'
+import { fetchAsignaturaPdf } from '@/data/api/document.api'
 
 export const Route = createFileRoute(
   '/planes/$planId/asignaturas/$asignaturaId/documento',
@@ -11,7 +11,7 @@ export const Route = createFileRoute(
 })
 
 function RouteComponent() {
-  const { planId } = useParams({
+  const { asignaturaId } = useParams({
     from: '/planes/$planId/asignaturas/$asignaturaId/documento',
   })
 
@@ -23,8 +23,8 @@ function RouteComponent() {
     try {
       setIsLoading(true)
 
-      const pdfBlob = await fetchPlanPdf({
-        plan_estudio_id: planId,
+      const pdfBlob = await fetchAsignaturaPdf({
+        asignatura_id: asignaturaId,
       })
 
       const url = window.URL.createObjectURL(pdfBlob)
@@ -38,7 +38,7 @@ function RouteComponent() {
     } finally {
       setIsLoading(false)
     }
-  }, [planId])
+  }, [asignaturaId])
 
   useEffect(() => {
     loadPdfPreview()
@@ -49,8 +49,8 @@ function RouteComponent() {
   }, [loadPdfPreview])
 
   const handleDownload = async () => {
-    const pdfBlob = await fetchPlanPdf({
-      plan_estudio_id: planId,
+    const pdfBlob = await fetchAsignaturaPdf({
+      asignatura_id: asignaturaId,
     })
 
     const url = window.URL.createObjectURL(pdfBlob)
diff --git a/src/routes/planes/$planId/asignaturas/$asignaturaId/route.tsx b/src/routes/planes/$planId/asignaturas/$asignaturaId/route.tsx
index 9f0fd10..3117ab2 100644
--- a/src/routes/planes/$planId/asignaturas/$asignaturaId/route.tsx
+++ b/src/routes/planes/$planId/asignaturas/$asignaturaId/route.tsx
@@ -232,7 +232,7 @@ function AsignaturaLayout() {
               { label: 'Datos', to: '' },
               { label: 'Contenido', to: 'contenido' },
               { label: 'Bibliografía', to: 'bibliografia' },
-              { label: 'IA', to: 'asignaturaIa' },
+              { label: 'IA', to: 'iaasignatura' },
               { label: 'Documento SEP', to: 'documento' },
               { label: 'Historial', to: 'historial' },
             ].map((tab) => {