diff --git a/varo/src/main/java/de/cliffbreak/varo/uitls/BanUtils.java b/varo/src/main/java/de/cliffbreak/varo/uitls/BanUtils.java
index b301302..efd1506 100644
--- a/varo/src/main/java/de/cliffbreak/varo/uitls/BanUtils.java
+++ b/varo/src/main/java/de/cliffbreak/varo/uitls/BanUtils.java
@@ -26,9 +26,12 @@ public class BanUtils {
     public void addBann(final UUID uuid) {
         @SuppressWarnings("unchecked")
         final ArrayList<String> bans = (ArrayList<String>) this.plugin.getConfig().get("Varo.Bans");
-        bans.add(uuid.toString().replace("-", ""));
-        this.plugin.getConfig().set("Varo.Bans", bans);
-        this.plugin.saveConfig();
+        final String compressedUUID = uuid.toString().replace("-", "");
+        if (!bans.contains(compressedUUID)) {
+            bans.add(compressedUUID);
+            this.plugin.getConfig().set("Varo.Bans", bans);
+            this.plugin.saveConfig();
+        }
     }
 
     public void removeBan(final String compressedUuid) {