diff --git a/Spigot-Server-Patches/Slime-Pathfinder-Events.patch b/Spigot-Server-Patches/Slime-Pathfinder-Events.patch
index 23e4d5fdd..b379e4ab0 100644
--- a/Spigot-Server-Patches/Slime-Pathfinder-Events.patch
+++ b/Spigot-Server-Patches/Slime-Pathfinder-Events.patch
@@ -5,7 +5,7 @@ Subject: [PATCH] Slime Pathfinder Events
 
 
 diff --git a/src/main/java/net/minecraft/server/EntitySlime.java b/src/main/java/net/minecraft/server/EntitySlime.java
-index 238f3c7926..cfa4710b78 100644
+index 238f3c792..586b9a3a6 100644
 --- a/src/main/java/net/minecraft/server/EntitySlime.java
 +++ b/src/main/java/net/minecraft/server/EntitySlime.java
 @@ -0,0 +0,0 @@ public class EntitySlime extends EntityInsentient implements IMonster {
@@ -20,7 +20,11 @@ index 238f3c7926..cfa4710b78 100644
  
          this.setSize(i + 1, false);
          this.bD = nbttagcompound.getBoolean("wasOnGround");
-+        this.canWander = nbttagcompound.getBoolean("Paper.canWander"); // Paper
++        // Paper start - check exists before loading or this will be loaded as false
++        if (nbttagcompound.hasKey("Paper.canWander")) {
++            this.canWander = nbttagcompound.getBoolean("Paper.canWander");
++        }
++        // Paper end
      }
  
      public boolean dy() {
@@ -115,7 +119,7 @@ index 238f3c7926..cfa4710b78 100644
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
-index 18e7ef80ac..8403c1e01c 100644
+index 18e7ef80a..8403c1e01 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
 @@ -0,0 +0,0 @@ public class CraftSlime extends CraftMob implements Slime {