diff --git a/fish/.config/fish/functions/fish_right_prompt.fish b/fish/.config/fish/functions/fish_right_prompt.fish
new file mode 100644
index 0000000..7513c70
--- /dev/null
+++ b/fish/.config/fish/functions/fish_right_prompt.fish
@@ -0,0 +1,6 @@
+function fish_right_prompt
+    if test $CMD_DURATION
+        printf %.3fs $(math $CMD_DURATION / 1000)
+    end
+end
+