diff --git a/.zsh/lib/path.zsh b/.zsh/lib/path.zsh
new file mode 100644
index 0000000..93f6c82
--- /dev/null
+++ b/.zsh/lib/path.zsh
@@ -0,0 +1,13 @@
+typeset -U path
+
+pathdirs=(
+  ~/arm-coding/gcc-arm-none-eabi-4_8-2014q1/bin \
+  ~/arm-coding/git/lm4tools/lm4flash \
+  ~/arm-coding/openocd-bin
+)
+
+for dir in $pathdirs; do
+  if [ -d $dir ]; then
+    path+=$dir
+  fi
+done