diff --git a/Runtime/HumanoidFree/Scripts/Networking/HumanoidNetworking.cs b/Runtime/HumanoidFree/Scripts/Networking/HumanoidNetworking.cs
index 0ee52b8..823706e 100644
--- a/Runtime/HumanoidFree/Scripts/Networking/HumanoidNetworking.cs
+++ b/Runtime/HumanoidFree/Scripts/Networking/HumanoidNetworking.cs
@@ -191,6 +191,8 @@ namespace Passer.Humanoid {
                 bw.Write(name);
                 bw.Write(avatarPrefabName);
                 bw.Write(physics);
+                if (possessionLocation == null)
+                    possessionLocation = "";
                 bw.Write(possessionLocation);
 #if RemoteAvatarBundles
                 bw.Write(remoteAvatarBundleSize);
@@ -1470,7 +1472,7 @@ namespace Passer.Humanoid {
             public ulong nwId;
             public byte humanoidId;
             public string avatarPrefabName;
-            public string possessionLocation;
+            public string possessionLocation = "";
 
             public ChangeAvatar() { }
             public ChangeAvatar(HumanoidControl humanoid, string avatarPrefabName, string possessionLocation) {
@@ -1488,6 +1490,8 @@ namespace Passer.Humanoid {
                 bw.Write(nwId);
                 bw.Write(humanoidId);
                 bw.Write(avatarPrefabName);
+                if (possessionLocation == null)
+                    possessionLocation = "";
                 bw.Write(possessionLocation);
 
                 byte[] data = ms.ToArray();
@@ -1502,6 +1506,8 @@ namespace Passer.Humanoid {
                 humanoidId = br.ReadByte();
                 avatarPrefabName = br.ReadString();
                 possessionLocation = br.ReadString();
+                if (possessionLocation == "")
+                    possessionLocation = null;
             }
 
             // This is the same code as in the base class IMessage