diff --git a/algs4/.env b/algs4/.env
index bb2e135..580223b 100644
--- a/algs4/.env
+++ b/algs4/.env
@@ -1,5 +1,2 @@
-#!/bin/bash
-
-if [ ! -n "$(echo "$PATH" | grep "$PWD/bin")" ]; then
-    export PATH="$PWD/bin:$PATH"
-fi
+HERE=$(dirname "$1")
+(echo "$PATH" | grep "$HERE/bin" >/dev/null 2>&1) || export PATH="$HERE/bin:$PATH"