diff --git a/syntax_checkers/python/flake8.vim b/syntax_checkers/python/flake8.vim
index 6c972fac..b5d0df23 100644
--- a/syntax_checkers/python/flake8.vim
+++ b/syntax_checkers/python/flake8.vim
@@ -35,8 +35,8 @@ function! SyntaxCheckers_python_flake8_GetLocList()
                 \ 'exe': 'flake8',
                 \ 'subchecker': 'flake8' })
     let errorformat = '%E%f:%l: could not compile,%-Z%p^,'.
-            \'%W%f:%l:%c: F%n %m,'.
-            \'%W%f:%l:%c: C%n %m,'.
+            \'%W%f:%l:%c: %[FE]%n %m,'.
+            \'%W%f:%l:%c: %[CW]%n %m,'.
             \'%E%f:%l:%c: %t%n %m,'.
             \'%E%f:%l: %t%n %m,%-G%.%#'
     return SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })