diff --git a/autoload/ale/linter.vim b/autoload/ale/linter.vim
index eec9cf1..b13aa1c 100644
--- a/autoload/ale/linter.vim
+++ b/autoload/ale/linter.vim
@@ -178,12 +178,13 @@ function! ale#linter#GetAll(filetypes) abort
     let l:combined_linters = []
 
     for l:filetype in a:filetypes
-        " Haven't we loaded the linter files for this filetype yet?
+        " Load linter defintions from files if we haven't loaded them yet.
         if !has_key(s:linters, l:filetype)
-            " So load it
             execute 'silent! runtime! ale_linters/' . l:filetype . '/*.vim'
 
-            " Still don't have the linter files? There must be occured an error
+            " Always set an empty List for the loaded linters if we don't find
+            " any. This will prevent us from executing the runtime command
+            " many times, redundantly.
             if !has_key(s:linters, l:filetype)
                 let s:linters[l:filetype] = []
             endif