diff --git a/src/tools/docmaker/tohtml.py b/src/tools/docmaker/tohtml.py
index f82cffa14..69911d3ea 100644
--- a/src/tools/docmaker/tohtml.py
+++ b/src/tools/docmaker/tohtml.py
@@ -35,27 +35,30 @@ html_header_1 = """\
html_header_2 = """\
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