diff --git a/11/title.txt b/11/title.txt
index e8c5caf..bf55f9a 100644
--- a/11/title.txt
+++ b/11/title.txt
@@ -1 +1 @@
-MSOLO 11
\ No newline at end of file
+Msolo 11
\ No newline at end of file
diff --git a/12/title.txt b/12/title.txt
index b355c70..ce75f20 100644
--- a/12/title.txt
+++ b/12/title.txt
@@ -1 +1 @@
-MSOLO 12
\ No newline at end of file
+Msolo 12
\ No newline at end of file
diff --git a/13/title.txt b/13/title.txt
index 68e3ceb..c8fb858 100644
--- a/13/title.txt
+++ b/13/title.txt
@@ -1 +1 @@
-MSOLO 13
\ No newline at end of file
+M 13
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index a2c7e8f..d3d9933 100644
--- a/manifest.json
+++ b/manifest.json
@@ -298,7 +298,6 @@
 		"12-51",
 		"12-54",
 		"12-57",
-		"13-title",
 		"13-01",
 		"13-04",
 		"13-06",