diff --git a/src/include/Makefile b/src/include/Makefile
index 2d5242561c..a7ca277803 100644
--- a/src/include/Makefile
+++ b/src/include/Makefile
@@ -54,7 +54,7 @@ install: all installdirs
 	  $(INSTALL_DATA) $(srcdir)/$$dir/*.h '$(DESTDIR)$(includedir_server)'/$$dir || exit; \
 	done
 ifeq ($(vpath_build),yes)
-	for file in catalog/schemapg.h catalog/system_fk_info.h catalog/pg_*_d.h storage/lwlocknames.h utils/probes.h; do \
+	for file in catalog/schemapg.h catalog/system_fk_info.h catalog/pg_*_d.h storage/lwlocknames.h utils/probes.h utils/wait_event_types.h; do \
 	  $(INSTALL_DATA) $$file '$(DESTDIR)$(includedir_server)'/$$file || exit; \
 	done
 endif