diff --git a/leaf-server/minecraft-patches/features/0166-Save-world-async-properly.patch b/leaf-server/minecraft-patches/features/0166-Save-world-async-properly.patch
new file mode 100644
index 00000000..e76e1021
--- /dev/null
+++ b/leaf-server/minecraft-patches/features/0166-Save-world-async-properly.patch
@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Taiyou06 <kaandindar21@gmail.com>
+Date: Thu, 8 May 2025 00:05:01 +0200
+Subject: [PATCH] Save world async properly
+
+P.S from Tai: I've been using this fix for weeks in my own server but didn't had balls to push it as thought it may cause issues but, it's merged in paper 1.21.5 now.
+
+
+diff --git a/net/minecraft/server/level/ServerLevel.java b/net/minecraft/server/level/ServerLevel.java
+index ba1dd51e7187a80e8438e46383257c22f5382130..6cb0c14cb7aa243bbee6ca9ba57da4cc6eafdfd8 100644
+--- a/net/minecraft/server/level/ServerLevel.java
++++ b/net/minecraft/server/level/ServerLevel.java
+@@ -1439,7 +1439,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+         }
+ 
+         if (doFull) {
+-            this.saveLevelData(true);
++            this.saveLevelData(false);
+         }
+         // chunk autosave is already called by the ChunkSystem during unload processing (ChunkMap#processUnloads)
+         // Copied from save()