diff --git a/include/crm/common/Makefile.am b/include/crm/common/Makefile.am
index be19e5ee1d..deeff16fe6 100644
--- a/include/crm/common/Makefile.am
+++ b/include/crm/common/Makefile.am
@@ -1,18 +1,18 @@
 #
 # Copyright 2004-2019 the Pacemaker project contributors
 #
 # The version control history for this file may have further details.
 #
 # This source code is licensed under the GNU General Public License version 2
 # or later (GPLv2+) WITHOUT ANY WARRANTY.
 #
 
 MAINTAINERCLEANFILES = Makefile.in
 
 headerdir=$(pkgincludedir)/crm/common
 
 header_HEADERS = xml.h ipc.h util.h iso8601.h mainloop.h logging.h results.h \
 		 nvpair.h
 noinst_HEADERS = cib_secrets.h ipcs.h internal.h alerts_internal.h \
 		 iso8601_internal.h remote_internal.h xml_internal.h \
-		 ipc_internal.h
+		 ipc_internal.h output.h