diff --git a/selfdrive/debug/internal/qlog_size.py b/selfdrive/debug/internal/qlog_size.py
index 7dc61ed9df..11606c7589 100755
--- a/selfdrive/debug/internal/qlog_size.py
+++ b/selfdrive/debug/internal/qlog_size.py
@@ -1,11 +1,12 @@
 #!/usr/bin/env python3
 import argparse
-import bz2
+import zstandard as zstd
 from collections import defaultdict
 
 import matplotlib.pyplot as plt
 
 from cereal.services import SERVICE_LIST
+from openpilot.system.loggerd.uploader import LOG_COMPRESSION_LEVEL
 from openpilot.tools.lib.logreader import LogReader
 from tqdm import tqdm
 
@@ -17,14 +18,14 @@ def make_pie(msgs, typ):
   for m in msgs:
     msgs_by_type[m.which()].append(m.as_builder().to_bytes())
 
-  total = len(bz2.compress(b"".join([m.as_builder().to_bytes() for m in msgs])))
+  total = len(zstd.compress(b"".join([m.as_builder().to_bytes() for m in msgs]), LOG_COMPRESSION_LEVEL))
   uncompressed_total = len(b"".join([m.as_builder().to_bytes() for m in msgs]))
 
   length_by_type = {k: len(b"".join(v)) for k, v in msgs_by_type.items()}
   # calculate compressed size by calculating diff when removed from the segment
   compressed_length_by_type = {}
   for k in tqdm(msgs_by_type.keys(), desc="Compressing"):
-    compressed_length_by_type[k] = total - len(bz2.compress(b"".join([m.as_builder().to_bytes() for m in msgs if m.which() != k])))
+    compressed_length_by_type[k] = total - len(zstd.compress(b"".join([m.as_builder().to_bytes() for m in msgs if m.which() != k]), LOG_COMPRESSION_LEVEL))
 
   sizes = sorted(compressed_length_by_type.items(), key=lambda kv: kv[1])