diff --git a/patches/server/Rewrite-dataconverter-system.patch b/patches/server/Rewrite-dataconverter-system.patch
index 69af79ef34..f179614fe1 100644
--- a/patches/server/Rewrite-dataconverter-system.patch
+++ b/patches/server/Rewrite-dataconverter-system.patch
@@ -18648,7 +18648,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +
 +                final MapType<String> endData = dimensionData.getMap("1");
 +                if (endData != null) {
-+                    data.setMap("DragonFight", endData.getMap("DragonFight", endData.getTypeUtil().createEmptyMap()));
++                    data.setMap("DragonFight", endData.getMap("DragonFight", endData.getTypeUtil().createEmptyMap()).copy());
 +                }
 +
 +                return null;