diff --git a/misc/freebsd-doc-en/files/patch-share_mk_doc.docbook.mk b/misc/freebsd-doc-en/files/patch-share_mk_doc.docbook.mk
new file mode 100644
index 000000000000..527aa6350506
--- /dev/null
+++ b/misc/freebsd-doc-en/files/patch-share_mk_doc.docbook.mk
@@ -0,0 +1,11 @@
+--- share/mk/doc.docbook.mk.orig	2018-04-02 17:55:35 UTC
++++ share/mk/doc.docbook.mk
+@@ -234,7 +234,7 @@ CLEANFILES+= ${DOC}.aux ${DOC}.dvi ${DOC}.log ${DOC}.o
+ .if ${RENDERENGINE} == "fop"
+ XSLTPROCOPTS+=	--param img.src.path "'${IMGDIR}/'"
+ XSLTPROCOPTS+=	--param callout.graphics.path "'${CALLOUTDIR}/'"
+-XSLTPROCOPTS+=	--maxdepth 6000
++XSLTPROCOPTS+=	--maxdepth 12000
+ .endif
+ .for _curimage in ${LOCAL_IMAGES_EPS:M*share*}
+ CLEANFILES+= ${_curimage:T} ${_curimage:H:T}/${_curimage:T}