diff --git a/doc/reference/Makefile.am b/doc/reference/Makefile.am
index d1aa30ced..6794e9626 100644
--- a/doc/reference/Makefile.am
+++ b/doc/reference/Makefile.am
@@ -81,7 +81,7 @@ IGNORE_HFILES= \
 	keybindings-private.h \
 	meta-background-actor-private.h \
 	meta-background-group-private.h \
-	meta-dbus-login1.h
+	meta-dbus-login1.h \
 	meta-module.h \
 	meta-plugin-manager.h \
 	meta-shadow-factory-private.h \