diff --git a/tests/test_language_id.py b/tests/test_language_id.py
index 84f2574f8..c0382aa14 100644
--- a/tests/test_language_id.py
+++ b/tests/test_language_id.py
@@ -10,6 +10,7 @@
     "binary_file, expected_result, expected_version",
     [
         ("data/language/go/go-hello/bin/go-hello.exe", Language.GO, "1.20"),
+        # Go sample with stomped PCNLTAB magic bytes, see https://github.com/mandiant/flare-floss/issues/840
         (
             "data/language/go/go-unknown-binaries/bin/8f62cfdb7b29fdc39131d8b43a32ae705854db96e340b78991bc9b43b32b4eb8.exe_",
             Language.GO,