diff --git a/WowPacketParserModule.V10_0_0_46181/Parsers/InstanceHandler.cs b/WowPacketParserModule.V10_0_0_46181/Parsers/InstanceHandler.cs
index d20de75553..669d3ab732 100644
--- a/WowPacketParserModule.V10_0_0_46181/Parsers/InstanceHandler.cs
+++ b/WowPacketParserModule.V10_0_0_46181/Parsers/InstanceHandler.cs
@@ -152,7 +152,10 @@ public static void HandleMultiFloorNewFloor(Packet packet)
         public static void HandleEncounterstart(Packet packet)
         {
             packet.ReadInt32("DungeonEncounterID");
-            packet.ReadInt32<DifficultyId>("DifficultyID");
+            if (ClientVersion.AddedInVersion(ClientVersionBuild.V12_0_0_65390))
+                packet.ReadInt16<DifficultyId>("DifficultyID");
+            else
+                packet.ReadInt32<DifficultyId>("DifficultyID");
             packet.ReadInt32("GroupSize");
             var count = packet.ReadUInt32();
 
diff --git a/WowPacketParserModule.V6_0_2_19033/Parsers/InstanceHandler.cs b/WowPacketParserModule.V6_0_2_19033/Parsers/InstanceHandler.cs
index d2d4433a6b..341418258f 100644
--- a/WowPacketParserModule.V6_0_2_19033/Parsers/InstanceHandler.cs
+++ b/WowPacketParserModule.V6_0_2_19033/Parsers/InstanceHandler.cs
@@ -208,7 +208,10 @@ public static void HandleEncounterStart(Packet packet)
         public static void HandleEncounterStop(Packet packet)
         {
             packet.ReadInt32("EncounterID");
-            packet.ReadInt32<DifficultyId>("DifficultyID");
+            if (ClientVersion.AddedInVersion(ClientVersionBuild.V12_0_0_65390))
+                packet.ReadInt16<DifficultyId>("DifficultyID");
+            else
+                packet.ReadInt32<DifficultyId>("DifficultyID");
             packet.ReadInt32("GroupSize");
             packet.ReadBit("Success");
         }