diff --git a/README.md b/README.md
index 10a38432..d4c98a6c 100644
--- a/README.md
+++ b/README.md
@@ -358,7 +358,7 @@ make sure to disable the current theme in your plugin manager. See
 ### Oh My Zsh
 
 ```zsh
-git clone --depth=1 https://github.com/romkatv/powerlevel10k.git $ZSH_CUSTOM/themes/powerlevel10k
+git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/powerlevel10k
 ```
 
 Set `ZSH_THEME="powerlevel10k/powerlevel10k"` in `~/.zshrc`.