diff --git a/reference/curl-7.52.1.tar.gz b/backup/curl-7.52.1.tar.gz
similarity index 100%
rename from reference/curl-7.52.1.tar.gz
rename to backup/curl-7.52.1.tar.gz
diff --git a/reference/libevent-2.1.11-stable.tar.gz b/backup/libevent-2.1.11-stable.tar.gz
similarity index 100%
rename from reference/libevent-2.1.11-stable.tar.gz
rename to backup/libevent-2.1.11-stable.tar.gz
diff --git a/reference/mjson-1.7.0.tar.gz b/backup/mjson-1.7.0.tar.gz
similarity index 100%
rename from reference/mjson-1.7.0.tar.gz
rename to backup/mjson-1.7.0.tar.gz
diff --git a/reference/mylib.zip b/backup/mylib.zip
similarity index 100%
rename from reference/mylib.zip
rename to backup/mylib.zip
diff --git a/reference/pkg.tgz b/backup/pkg.tgz
similarity index 100%
rename from reference/pkg.tgz
rename to backup/pkg.tgz