diff --git a/etc/Makefile b/etc/Makefile
index b2a80d4a7b5..097b7e3728b 100644
--- a/etc/Makefile
+++ b/etc/Makefile
@@ -124,6 +124,7 @@ MTREES+=	../${mtree}			/
 # Clean up files that have changed into directories, as mtree cannot handle this
 # scenario.
 DISTRIB_CLEANUP_FILES+=	${INCLUDEDIR}/c++/v1/__string
+DISTRIB_CLEANUP_FILES+=	${INCLUDEDIR}/c++/v1/__tuple
 distrib-cleanup: .PHONY
 	for file in ${DISTRIB_CLEANUP_FILES}; do \
 		if [ -f ${DESTDIR}/$${file} ]; then \