diff --git a/parser.py b/parser.py
index 318c15f..b9c0d80 100644
--- a/parser.py
+++ b/parser.py
@@ -4,6 +4,15 @@
 HEADER = "<roblox!"
 RBXM_SIGNATURE = "\x89\xff\x0d\x0a\x1a\x0a"
 ZSTD_HEADER = "\x28\xB5\x2F\xFD"
+VALID_CHUNK_IDENTIFIERS = {
+	"END\0":True,
+	"INST":True,
+	"META":True,
+	"PRNT":True,
+	"PROP":True,
+	"SIGN":True,
+	"SSTR":True
+}
 def createTable(length,val):
     arr=[]
     for i in range(length):
@@ -34,6 +43,10 @@ class rbxm:
             Metadata=[]
             Strings=[]
         ##end
+        chunkInfo={}
+        for (k in VALID_CHUNK_IDENTIFIERS):
+            chunkInfo[k]=[]
+        ##end
     ##endwith
 ##end
 def toJson(obj):