diff --git a/unblob/handlers/archive/tar.py b/unblob/handlers/archive/tar.py
index a9b174a6a7..8dbc1f7fdf 100644
--- a/unblob/handlers/archive/tar.py
+++ b/unblob/handlers/archive/tar.py
@@ -143,6 +143,7 @@ def signed_sum(octets) -> int:
                 "Invalid checksum format",
                 actual_last_2_bytes=header.chksum[6:8],
                 handler=self.NAME,
+                verbosity=3,
             )
             return None
         checksum = decode_int(header.chksum[:6], 8)