diff --git a/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/LongMigratorAction.java b/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/LongMigratorAction.java
index c1176bca..3f111423 100644
--- a/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/LongMigratorAction.java
+++ b/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/LongMigratorAction.java
@@ -4,6 +4,9 @@ import co.aikar.commands.ACFUtil;
 import com.dumptruckman.minecraft.util.Logging;
 import org.bukkit.configuration.ConfigurationSection;
 
+/**
+ * Single migrator action that converts a string value to a long.
+ */
 public class LongMigratorAction implements MigratorAction {
 
     public static LongMigratorAction of(String path) {
@@ -16,6 +19,9 @@ public class LongMigratorAction implements MigratorAction {
         this.path = path;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public void migrate(ConfigurationSection config) {
         config.set(path, ACFUtil.parseLong(config.getString(path)));
diff --git a/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/NullStringMigratorAction.java b/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/NullStringMigratorAction.java
index daaba2cd..e47657be 100644
--- a/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/NullStringMigratorAction.java
+++ b/src/main/java/com/onarandombox/MultiverseCore/configuration/migration/NullStringMigratorAction.java
@@ -3,6 +3,9 @@ package com.onarandombox.MultiverseCore.configuration.migration;
 import com.dumptruckman.minecraft.util.Logging;
 import org.bukkit.configuration.ConfigurationSection;
 
+/**
+ * Single migrator action changes a string value of "null" to an empty string.
+ */
 public class NullStringMigratorAction implements MigratorAction {
 
     public static NullStringMigratorAction of(String path) {
@@ -15,6 +18,9 @@ public class NullStringMigratorAction implements MigratorAction {
         this.path = path;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public void migrate(ConfigurationSection config) {
         config.set(path, "null".equals(config.getString(path)) ? "" : config.getString(path));