diff --git a/src/main/java/me/ryanhamshire/GriefPrevention/GriefPrevention.java b/src/main/java/me/ryanhamshire/GriefPrevention/GriefPrevention.java
index f06ab2f..771f926 100644
--- a/src/main/java/me/ryanhamshire/GriefPrevention/GriefPrevention.java
+++ b/src/main/java/me/ryanhamshire/GriefPrevention/GriefPrevention.java
@@ -2589,6 +2589,10 @@ public class GriefPrevention extends JavaPlugin
         String permission = null;
         OfflinePlayer otherPlayer = null;
         UUID recipientID = null;
+        if (!recipientName.matches("^\\w{3,16}$")) {
+            GriefPrevention.sendMessage(player, TextMode.Err, Messages.PlayerNotFound2);
+            return;
+        }
         if (recipientName.startsWith("[") && recipientName.endsWith("]"))
         {
             permission = recipientName.substring(1, recipientName.length() - 1);