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-rw-r--r--tools/boostbook/xsl/lookup.xsl2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/boostbook/xsl/lookup.xsl b/tools/boostbook/xsl/lookup.xsl
index d37e787a7a..46cb7c7bb7 100644
--- a/tools/boostbook/xsl/lookup.xsl
+++ b/tools/boostbook/xsl/lookup.xsl
@@ -236,7 +236,7 @@
<xsl:variable name="normalized" select="translate(normalize-space(translate($part, '.&lt;&gt;;\:*?&quot;|_', ' ')), ' ', '_')"/>
<xsl:value-of select =
"concat(
- substring($normalized, 1, $boost.max.id.part.length - string-length(generate-id(.) - 1)),
+ substring($normalized, 1, $boost.max.id.part.length - string-length(generate-id(.)) - 1),
concat('_', generate-id(.)))"/>
</xsl:when>
<xsl:otherwise>