diff --git a/usr/local/bin/sh.zio.backup b/usr/local/bin/sh.zio.backup
index 4f63980..6409307 100755
--- a/usr/local/bin/sh.zio.backup
+++ b/usr/local/bin/sh.zio.backup
@@ -95,8 +95,8 @@ function invoke_script() {
     chmod +x "$backup_script"
 
     export -f backup_dir
+    export -f backup_dumps
     export -f die
-    export -f dumps_dir
     export -f forget_backup
     export -f get_config_dir
     export -f get_dump_dir