diff --git a/Documentation/Books/codeBlockReader.py b/Documentation/Books/codeBlockReader.py
index 5f600c8d46..e689668790 100644
--- a/Documentation/Books/codeBlockReader.py
+++ b/Documentation/Books/codeBlockReader.py
@@ -175,7 +175,7 @@ def fetch_comments(dirpath):
         filepath = os.path.join(root, filename)
         file_comments = file_content(filepath)
         for comment in file_comments:
-          fh.write("\n<!-- filename: %s -->\n" % filename)
+          fh.write("\n<!-- filename: %s -->\n" % filepath)
           for _com in comment:
             _text = re.sub(r"//(/)+\s*\n", "<br />", _com)
             _text = re.sub(r"///+(\s+\s+)([-\*\d])", r"  \2", _text)