-

diff --git a/lib/pegTokenizer.pegjs.txt b/lib/pegTokenizer.pegjs.txt
index fcdc022..d0df4ad 100644
--- a/lib/pegTokenizer.pegjs.txt
+++ b/lib/pegTokenizer.pegjs.txt
@@ -1745,7 +1745,7 @@ table_heading_tag
           // There's been a newline. Remove the break and continue
           // tokenizing nested_block_in_tables.
           stops.pop('th');
-        } else if (input.substr(endOffset() + 1, 2) === '!!') {
+        } else if (input.substr(endOffset(), 2) === '!!') {
           // Ok, no newlines and we broke for a double exclamation.
           // Stop here and let the next table_heading_tag proceed.
           return false;