diff --git a/doc/manual/options-to-docbook.xsl b/doc/manual/options-to-docbook.xsl
index ce942d57430..0584081fef1 100644
--- a/doc/manual/options-to-docbook.xsl
+++ b/doc/manual/options-to-docbook.xsl
@@ -158,6 +158,9 @@
             <xsl:when test="$revision != 'local' and contains(@value, '/modules/')">
               <xsl:attribute name="xlink:href">https://github.com/NixOS/nixos/blob/<xsl:value-of select="$revision"/>/modules/<xsl:value-of select="substring-after(@value, '/modules/')"/></xsl:attribute>
             </xsl:when>
+            <xsl:when test="$revision != 'local' and contains(@value, 'charon') and contains(@value, '/nix/')">
+              <xsl:attribute name="xlink:href">https://github.com/NixOS/charon/blob/<xsl:value-of select="$revision"/>/nix/<xsl:value-of select="substring-after(@value, '/nix/')"/></xsl:attribute>
+            </xsl:when>
             <xsl:otherwise>
               <xsl:attribute name="xlink:href">file://<xsl:value-of select="@value"/></xsl:attribute>
             </xsl:otherwise>
@@ -169,6 +172,9 @@
             <xsl:when test="contains(@value, '/modules/')">
               &lt;nixos/modules/<xsl:value-of select="substring-after(@value, '/modules/')"/>&gt;
             </xsl:when>
+            <xsl:when test="contains(@value, 'charon') and contains(@value, '/nix/')">
+              &lt;charon/<xsl:value-of select="substring-after(@value, '/nix/')"/>&gt;
+            </xsl:when>
             <xsl:otherwise>
               <xsl:value-of select="@value" />
             </xsl:otherwise>