diff --git a/org_rw/dom.py b/org_rw/dom.py
index 23ea44b..6b3e455 100644
--- a/org_rw/dom.py
+++ b/org_rw/dom.py
@@ -89,12 +89,11 @@ class BlockNode:
 
 
 class CodeBlock(BlockNode):
-    def __init__(self, header, subtype, arguments):
+    def __init__(self, header, subtype):
         super().__init__()
         self.header = header
         self.lines = None
         self.subtype = subtype
-        self.arguments = arguments
 
     def set_lines(self, lines):
         self.lines = lines
diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index 4fbfdb3..e412c4a 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -481,7 +481,7 @@ class Headline:
                 and line.delimiter_type == DelimiterLineType.BEGIN_BLOCK
             ):
                 assert type(current_node) in NON_FINISHED_GROUPS
-                current_node = dom.CodeBlock(line, line.type_data.subtype, line.arguments)
+                current_node = dom.CodeBlock(line, line.type_data.subtype)
 
             elif isinstance(line, Keyword):
                 logging.warning("Keywords not implemented on `as_dom()`")