diff --git a/docs/Makefile.am b/docs/Makefile.am
index 9b54b40e1..7020273df 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -76,6 +76,7 @@ content_files=	\
 	usermanual-install-harfbuzz.xml \
 	usermanual-getting-started.xml \
 	usermanual-shaping-concepts.xml \
+	usermanual-object-model.xml \
 	usermanual-buffers-language-script-and-direction.xml \
 	usermanual-fonts-and-faces.xml \
 	usermanual-clusters.xml \