diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index d1929c217a..a8753285a8 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -281,7 +281,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
     <para><function>sd_bus_error_set_errno</function> will set
     <structfield>name</structfield> based on an errno-like value.
-    <citerefentry><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+    <citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
     will be used to set <structfield>message</structfield>. Well-known
     D-Bus error names will be used for <structfield>name</structfield>
     if available, otherwise a name in the
@@ -408,7 +408,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
       <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-      <citerefentry><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+      <citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
     </para>
   </refsect1>