diff --git a/prebuilt/common/bin/50-cm.sh b/prebuilt/common/bin/50-cm.sh
index 59d9bc6..c8b81cb 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 CM12.1 upgrade, this script backs up /system/etc/hosts,
+# During a CM13.0 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 0b45247..9598f23 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=12.1
+export V=13.0
 
 backup_file() {
   if [ -e "$1" ]; then
diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index e2759ed..80e4e20 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=12.1
+export V=13.0
 
 # Scripts in /system/addon.d expect to find backuptool.functions in /tmp
 cp -f /tmp/install/bin/backuptool.functions /tmp