diff --git a/13/title.txt b/13/title.txt
new file mode 100644
index 0000000..8b419d4
--- /dev/null
+++ b/13/title.txt
@@ -0,0 +1 @@
+Capítulo 13
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index bc94da3..febf59e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -144,6 +144,8 @@
 		"12-10",
 		"12-11",
 		"12-13",
+		"12-15",
+		"13-title",
 		"22-01",
 		"22-03",
 		"22-06",