diff --git a/gdb-port/tests/integration/test_stack_frame_parser_context.py b/gdb-port/tests/integration/test_stack_frame_parser_context.py
index 44b9648c5d5265bb1deaa03fb75ccc751581df09..6d808ce2e77237c8cb8c297ca9de96884c4c0e0b 100644
--- a/gdb-port/tests/integration/test_stack_frame_parser_context.py
+++ b/gdb-port/tests/integration/test_stack_frame_parser_context.py
@@ -11,6 +11,7 @@ class TestParserContextInNewStackFrames(unittest.TestCase):
 
 		self.top_level_parse.enter_h_packrat_parse(self.a.address)
 
+		# TODO: When using DETAILED_ARENA_STATS, arena needs to be an actual HArena object, not just "256"
 		#TODO: are we initializing from scratch for every test?
 		self.top_level_parse.enter_h_do_parse(400, 256, self.a.address)
 		self.top_level_parse.parse_virtual(self.a.address)