diff --git a/doc/ale-sh.txt b/doc/ale-sh.txt
index 1d9f12f..e8c29dd 100644
--- a/doc/ale-sh.txt
+++ b/doc/ale-sh.txt
@@ -8,7 +8,8 @@ shell                                                            *ale-sh-shell*
 g:ale_sh_shell_default_shell                     *g:ale_sh_shell_default_shell*
                                                  *b:ale_sh_shell_default_shell*
   Type: |String|
-  Default: The current shell (`$SHELL`) or `'bash'` if that cannot be read.
+  Default: The current shell (`$SHELL`). Falls back to `'bash'` if that cannot be
+  read or if the current shell is `'fish'`.
 
   When ALE runs the linter for shells with the `-n` flag, it will attempt to
   read the shell from the shebang (`#!`) line from the shell script to