diff --git a/files/archive-subfolders b/files/archive-subfolders
index 64a0119..3237238 100755
--- a/files/archive-subfolders
+++ b/files/archive-subfolders
@@ -109,6 +109,7 @@ trap killtrap 9 15
 for d in "${REALFOLDERS[@]}"; do 
   DU=$( fastdu "$d.tar" )
   DUh=$( fastdu -h "$d.tar" )
+  which pv &> /dev/null || { echo "You dont have pv"; exit 1; }
   cat "$d.tar" | pv -s $DU | gzip > "$d.tar.gz" && {
       rm "$d.tar"
   }