diff -r fa308dd62f4c -r f88830d41330 doc/reference/protocols/facebook/meson.build
--- a/doc/reference/protocols/facebook/meson.build	Fri Nov 13 22:19:28 2020 -0600
+++ b/doc/reference/protocols/facebook/meson.build	Sat Nov 14 03:02:30 2020 -0600
@@ -17,7 +17,7 @@
     libpurple_version_xml,
 ]
 
-gnome.gtkdoc(DOC_MODULE,
+facebook_doc = gnome.gtkdoc(DOC_MODULE,
     main_xml : DOC_MODULE + '-docs.xml',
     src_dir : facebook_inc,
     dependencies : facebook_dep,