diff --git a/src/com/massivecraft/massivecore/MassiveCoreMConf.java b/src/com/massivecraft/massivecore/MassiveCoreMConf.java
index 5793b6a5..c264df5b 100644
--- a/src/com/massivecraft/massivecore/MassiveCoreMConf.java
+++ b/src/com/massivecraft/massivecore/MassiveCoreMConf.java
@@ -26,6 +26,12 @@ public class MassiveCoreMConf extends Entity<MassiveCoreMConf>
 	protected static transient MassiveCoreMConf i;
 	public static MassiveCoreMConf get() { return i; }
 	
+	// -------------------------------------------- //
+	// VERSION
+	// -------------------------------------------- //
+	
+	public int version = 1;
+	
 	// -------------------------------------------- //
 	// ALIASES
 	// -------------------------------------------- //
diff --git a/src/com/massivecraft/massivecore/entity/migrator/MigratorMassiveCoreMConf001CleanInactivity.java b/src/com/massivecraft/massivecore/entity/migrator/MigratorMassiveCoreMConf001CleanInactivity.java
new file mode 100644
index 00000000..67bb131f
--- /dev/null
+++ b/src/com/massivecraft/massivecore/entity/migrator/MigratorMassiveCoreMConf001CleanInactivity.java
@@ -0,0 +1,23 @@
+package com.massivecraft.massivecore.entity.migrator;
+
+import com.massivecraft.massivecore.MassiveCoreMConf;
+import com.massivecraft.massivecore.store.migrator.MigratorFieldRename;
+import com.massivecraft.massivecore.store.migrator.MigratorRoot;
+
+public class MigratorMassiveCoreMConf001CleanInactivity extends MigratorRoot
+{
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	
+	private static MigratorMassiveCoreMConf001CleanInactivity i = new MigratorMassiveCoreMConf001CleanInactivity();
+	public static MigratorMassiveCoreMConf001CleanInactivity get() { return i; }
+	private MigratorMassiveCoreMConf001CleanInactivity()
+	{
+		super(MassiveCoreMConf.class);
+		this.addInnerMigrator(MigratorFieldRename.get("playercleanPeriodMillis", "cleanTaskPeriodMillis"));
+		this.addInnerMigrator(MigratorFieldRename.get("playercleanOffsetMillis", "cleanTaskOffsetMillis"));
+		this.addInnerMigrator(MigratorFieldRename.get("playercleanLastMillis", "cleanTaskLastMillis"));
+	}
+	
+}