diff --git a/README.mkdn b/README.mkdn
index af7bff0..f9612af 100644
--- a/README.mkdn
+++ b/README.mkdn
@@ -11,7 +11,7 @@
     (Go to repo you are patching, make your changes and commit)
     cmgerrit <for(new)/changes(patch set)> <branch/change-id> 
 
-    repo start cm-12.0 .
+    repo start cm-12.1 .
     (Make your changes and commit)
     repo upload .
 Note: "." meaning current directory
@@ -31,7 +31,7 @@
 
 To initialize your local repository using the CyanogenMod trees, use a command like this:
 
-    repo init -u git://github.com/CyanogenMod/android.git -b cm-12.0
+    repo init -u git://github.com/CyanogenMod/android.git -b cm-12.1
 
 Then to sync up:
 
diff --git a/prebuilt/common/bin/50-cm.sh b/prebuilt/common/bin/50-cm.sh
index 724c444..59d9bc6 100755
--- a/prebuilt/common/bin/50-cm.sh
+++ b/prebuilt/common/bin/50-cm.sh
@@ -1,7 +1,7 @@
 #!/sbin/sh
 # 
 # /system/addon.d/50-cm.sh
-# During a CM11 upgrade, this script backs up /system/etc/hosts,
+# During a CM12.1 upgrade, this script backs up /system/etc/hosts,
 # /system is formatted and reinstalled, then the file is restored.
 #
 
diff --git a/prebuilt/common/bin/backuptool.functions b/prebuilt/common/bin/backuptool.functions
index 10d66a4..0b45247 100644
--- a/prebuilt/common/bin/backuptool.functions
+++ b/prebuilt/common/bin/backuptool.functions
@@ -5,7 +5,7 @@
 
 export C=/tmp/backupdir
 export S=/system
-export V=12
+export V=12.1
 
 backup_file() {
   if [ -e "$1" ]; then
diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index bf71149..fa29ad2 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -5,7 +5,7 @@
 
 export C=/tmp/backupdir
 export S=/system
-export V=12
+export V=12.1
 
 # Scripts in /system/addon.d expect to find backuptool.functions in /tmp
 cp -f /tmp/install/bin/backuptool.functions /tmp