diff --git a/GriefPrevention.md b/GriefPrevention.md
index d16616d..b40d20d 100644
--- a/GriefPrevention.md
+++ b/GriefPrevention.md
@@ -52,7 +52,8 @@ Migration output should appear in console as it is migrating.
 
 ## Sponge
 
-:warning: The migrator will not copy the `global.conf` as there have been many changes to it in GriefDefender. You will have to manually copy the settings you want from GP's `global.conf` to GD.
+:warning: The migrator will not copy the `global.conf` as there have been many changes to it in GriefDefender. You will have to manually copy the settings you want from GP's `global.conf` to GD.  
+:warning: Make sure GriefPreventionData exists in `./plugins/` folder. If migrating from Bukkit, you must copy `GriefPreventionData` to `./plugins/`  
 
 1. Add GriefDefender jar to mods or plugins folder
 2. Remove GriefPrevention jar from mods/plugins folder
@@ -87,8 +88,8 @@ migrator {
     worldguard=false
 }
 ```
-7. Set `griefprevention-sponge` to `true`
-8. Set 'playerdata' to true.  
+7. Set `griefprevention-sponge` to `true` or `griefprevention-bukkit` to `true` if migrating from Bukkit.
+8. If migrating from GP Sponge, set 'playerdata' to true.  
 Note: Make sure to read the comment carefully as there are things to check before turning on the migrator.
 9. Locate section
 ```