diff --git a/Makefile.am b/Makefile.am
index 046ee20..65e57d3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@
 	sdbusplus/message.hpp \
 	sdbusplus/message/append.hpp \
 	sdbusplus/message/read.hpp \
+	sdbusplus/message/types.hpp \
 	sdbusplus/server.hpp \
 	sdbusplus/server/interface.hpp \
 	sdbusplus/server/manager.hpp \