diff --git a/.github/workflows/version_branch.yml b/.github/workflows/version_branch.yml
index 61266d9..fc6173a 100644
--- a/.github/workflows/version_branch.yml
+++ b/.github/workflows/version_branch.yml
@@ -194,8 +194,7 @@ data = target.read_bytes()
 # Report line numbers without printing the raw characters.
 
 def byte_to_line(blob: bytes, idx: int) -> int:
-  return blob[:idx].count(b'
-') + 1
+  return blob[:idx].count(b'\n') + 1
 
 bad = []
 for i, b in enumerate(data):