diff --git a/bin/snap-sync b/bin/snap-sync
index 0181cb3..7731e0d 100755
--- a/bin/snap-sync
+++ b/bin/snap-sync
@@ -168,10 +168,16 @@ for x in $selected_configs; do
     backup_location=$BACKUPDIR/$x/$new_number/
     printf "Will backup %s to %s\n" "$new_snapshot" "$backup_location/snapshot" | tee $PIPE
 
+    cont_backup=""
     if [[ $noconfirm == "yes" ]]; then
         cont_backup="yes"
     else
-        read -r -p "Continue with backup [Y/n]? " cont_backup
+        while [[ $cont_backup != [Yy]"es" && $cont_backup != [Yy] && $cont_backup != [Nn]"o" && $cont_backup != [Nn] ]]; do
+            read -r -p "Continue with backup [Y/n]? " cont_backup
+            if [[ $cont_backup != [Yy]"es" && $cont_backup != [Yy] && $cont_backup != [Nn]"o" && $cont_backup != [Nn] ]]; then
+                printf "Select 'Y' or 'n'.\n"
+            fi
+        done
     fi
 
     if [[ "$cont_backup" != [Yy]"es" && "$cont_backup" != [Yy] && -n "$cont_backup" ]]; then