diff --git a/resources/opcodes.json b/resources/opcodes.json
index f2a7179..90c96b7 100644
--- a/resources/opcodes.json
+++ b/resources/opcodes.json
@@ -215,7 +215,7 @@
         {
             "name": "ChatMessage",
             "opcode": 293,
-            "size": 1056
+            "size": 58
         },
         {
             "name": "GameMasterCommand",
@@ -234,7 +234,7 @@
         },
         {
             "name": "Unk16",
-            "opcode": 392,
+            "opcode": 953,
             "size": 8
         },
         {
@@ -244,7 +244,7 @@
         },
         {
             "name": "Unk18",
-            "opcode": 221,
+            "opcode": 409,
             "size": 8
         },
         {