diff --git a/doc/userguide/Makefile.am b/doc/userguide/Makefile.am
index 27a8a64998..f94eba5134 100644
--- a/doc/userguide/Makefile.am
+++ b/doc/userguide/Makefile.am
@@ -1,5 +1,6 @@
 EXTRA_DIST = \
 	_static \
+	3rd-party-integration \
 	acknowledgements.rst \
 	capture-hardware \
 	command-line-options.rst \