diff --git a/README.md b/README.md
index 8fea01a69..bf8d44712 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ If you wish to use fish as your default shell, use the following command:
 
 	chsh -s /usr/local/bin/fish
 
-`chsh` will prompt you for your password and change your default shell. (Substitute `/usr/local/bin/fish` with whatever path fish was installed to, if it differs.)
+`chsh` will prompt you for your password and change your default shell. (Substitute `/usr/local/bin/fish` with whatever path fish was installed to, if it differs.) Log out, then log in again for the changes to take effect.
 
 Use the following command if fish isn't already added to `/etc/shells` to permit fish to be your login shell: