diff --git a/sdk_container/src/third_party/portage-stable/app-text/docbook-xsl-ns-stylesheets/docbook-xsl-ns-stylesheets-1.79.1.ebuild b/sdk_container/src/third_party/portage-stable/app-text/docbook-xsl-ns-stylesheets/docbook-xsl-ns-stylesheets-1.79.1.ebuild
index 39ee587c37..af23f5e4f2 100644
--- a/sdk_container/src/third_party/portage-stable/app-text/docbook-xsl-ns-stylesheets/docbook-xsl-ns-stylesheets-1.79.1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/app-text/docbook-xsl-ns-stylesheets/docbook-xsl-ns-stylesheets-1.79.1.ebuild
@@ -73,10 +73,10 @@ EOF
 
 pkg_postinst() {
 	# See bug #816303 for rationale behind die
-	build-docbook-catalog || die "Failed to regenerate docbook catalog. Is /run mounted?"
+	"${EROOT}"/usr/sbin/build-docbook-catalog || die "Failed to regenerate docbook catalog. Is /run mounted?"
 }
 
 pkg_postrm() {
 	# See bug #816303 for rationale behind die
-	build-docbook-catalog || die "Failed to regenerate docbook catalog. Is /run mounted?"
+	"${EROOT}"/usr/sbin/build-docbook-catalog || die "Failed to regenerate docbook catalog. Is /run mounted?"
 }