diff --git a/README.md b/README.md
index bfbd790ef..fc549ef61 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,10 @@ If you wish to use fish as your default shell, use the following command:
 
 chsh will prompt you for your password, and change your default shell. Substitute "/usr/local/bin/fish" with whatever path to fish is in your /etc/shells file.
 
+Use the following command if you didn't already add your fish path to /etc/shells.
+
+        echo /usr/local/bin/fish | sudo tee -a /etc/shells
+
 To switch your default shell back, you can run:
 
 	chsh -s /bin/bash