diff --git a/Spigot-Server-Patches/0508-Fix-CraftServer.unloadWorld-Leak.patch b/Spigot-Server-Patches/0508-Fix-CraftServer.unloadWorld-Leak.patch
index eda0a2f3a..c1f1724a1 100644
--- a/Spigot-Server-Patches/0508-Fix-CraftServer.unloadWorld-Leak.patch
+++ b/Spigot-Server-Patches/0508-Fix-CraftServer.unloadWorld-Leak.patch
@@ -97,7 +97,7 @@ index 8477febca23b575da21023b4d7c18bb679cf3b30..dcdd8d38dee89ae7ac404a431e51a61c
              this.V = i + 1;
          }
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index b89f99a66fe2ab9ad4c956c38c9e4b1d79716c9c..5a40661c1cecde80760f4f87027f7ca8cde6817e 100644
+index b89f99a66fe2ab9ad4c956c38c9e4b1d79716c9c..c2b7cb36052455eef2100a1924dc76a5921fa858 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -60,6 +60,7 @@ import net.minecraft.server.EntityPlayer;
@@ -115,7 +115,7 @@ index b89f99a66fe2ab9ad4c956c38c9e4b1d79716c9c..5a40661c1cecde80760f4f87027f7ca8
 -        console.worldServer.remove(handle.getWorldProvider().getDimensionManager());
 +        // Paper start
 +        DimensionManager dimensionManager = handle.getWorldProvider().getDimensionManager();
-+        DimensionManager.unregister(world.getName(), dimensionManager);
++        DimensionManager.unregister(world.getName().toLowerCase(java.util.Locale.ENGLISH), dimensionManager);
 +        console.worldServer.remove(dimensionManager);
 +        // Paper end
          return true;