diff --git a/INSTALL.md b/INSTALL.md
index 725a8f8..2f3956c 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -56,10 +56,10 @@
     brew install zsh-autosuggestions
     ```
 
-2. To activate the autosuggestions, add the following at the end of your .zshrc: 
-    
+2. To activate the autosuggestions, add the following at the end of your .zshrc. Running this command on the terminal will add the source line to the end of your .zshrc:
+
     ```sh
-    source $(brew --prefix)/share/zsh-autosuggestions/zsh-autosuggestions.zsh
+    echo "source $(brew --prefix)/share/zsh-autosuggestions/zsh-autosuggestions.zsh" >> ${ZDOTDIR:-$HOME}/.zshrc
     ```
 
 3. Start a new terminal session.
@@ -72,10 +72,10 @@
     git clone https://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions
     ```
 
-2. Add the following to your `.zshrc`:
+2. Add the following to your `.zshrc`. Running this command on the terminal will add the source line to the end of your `.zshrc`:
 
     ```sh
-    source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh
+    echo "source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh" >> ${ZDOTDIR:-$HOME}/.zshrc
     ```
 
 3. Start a new terminal session.