diff --git a/home/default/.local/bin/bookmark b/home/default/.local/bin/bookmark
index efb834d..8fef89c 100755
--- a/home/default/.local/bin/bookmark
+++ b/home/default/.local/bin/bookmark
@@ -1,6 +1,6 @@
 #!/bin/sh
 bookmark="$(wl-paste)"
-file="$HOME/notebook/bookmarks/bookmarks.md"
+file="$HOME/notebook/bookmarks.org"
 
 if grep -q "^$bookmark$" "$file"; then
   notify-send "error." "bookmark \"$bookmark\" exists."