diff --git a/Assets/Mirror/Runtime/SyncVarGameObject.cs b/Assets/Mirror/Runtime/SyncVarGameObject.cs
index 284ac9555..81e50cbf0 100644
--- a/Assets/Mirror/Runtime/SyncVarGameObject.cs
+++ b/Assets/Mirror/Runtime/SyncVarGameObject.cs
@@ -127,5 +127,9 @@ static GameObject GetGameObject(uint netId)
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static bool operator !=(GameObject a, SyncVarGameObject b) => !(a == b);
+
+        // if we overwrite == operators, we also need to overwrite .Equals.
+        public override bool Equals(object obj) => obj is SyncVarGameObject value && this == value;
+        public override int GetHashCode() => Value.GetHashCode();
     }
 }
diff --git a/Assets/Mirror/Runtime/SyncVarNetworkBehaviour.cs b/Assets/Mirror/Runtime/SyncVarNetworkBehaviour.cs
index f09f7e915..16adc93b6 100644
--- a/Assets/Mirror/Runtime/SyncVarNetworkBehaviour.cs
+++ b/Assets/Mirror/Runtime/SyncVarNetworkBehaviour.cs
@@ -80,6 +80,10 @@ public SyncVarNetworkBehaviour(T value = null)
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static bool operator !=(NetworkBehaviour a, SyncVarNetworkBehaviour<T> b) => !(a == b);
 
+        // if we overwrite == operators, we also need to overwrite .Equals.
+        public override bool Equals(object obj) => obj is SyncVarNetworkBehaviour<T> value && this == value;
+        public override int GetHashCode() => Value.GetHashCode();
+
         // helper functions to get/set netId, componentIndex from ulong
         internal static ulong Pack(uint netId, byte componentIndex)
         {
diff --git a/Assets/Mirror/Runtime/SyncVarNetworkIdentity.cs b/Assets/Mirror/Runtime/SyncVarNetworkIdentity.cs
index aff6d2297..8f1cea4f5 100644
--- a/Assets/Mirror/Runtime/SyncVarNetworkIdentity.cs
+++ b/Assets/Mirror/Runtime/SyncVarNetworkIdentity.cs
@@ -102,5 +102,9 @@ public SyncVarNetworkIdentity(NetworkIdentity value = null)
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static bool operator !=(NetworkIdentity a, SyncVarNetworkIdentity b) => !(a == b);
+
+        // if we overwrite == operators, we also need to overwrite .Equals.
+        public override bool Equals(object obj) => obj is SyncVarNetworkIdentity value && this == value;
+        public override int GetHashCode() => Value.GetHashCode();
     }
 }