diff --git a/doc/syntastic-checkers.txt b/doc/syntastic-checkers.txt
index e70d61a0..8cf8f9a1 100644
--- a/doc/syntastic-checkers.txt
+++ b/doc/syntastic-checkers.txt
@@ -6123,6 +6123,13 @@ Installation~
 You can install "Slim-Lint" with "gem": >
     gem install slim_lint
 <
+Note~
+
+You probably also need a plugin to set |filetype| for Slim files, such as
+"vim-slim":
+
+     https://github.com/slim-template/vim-slim
+
 ------------------------------------------------------------------------------
 2. Slimrb                                              *syntastic-slim-slimrb*
 
@@ -6139,6 +6146,13 @@ Checker options~
 This checker is initialised using the "makeprgBuild()" function and thus it
 accepts the standard options described at |syntastic-config-makeprg|.
 
+Note~
+
+You probably also need a plugin to set |filetype| for Slim files, such as
+"vim-slim":
+
+     https://github.com/slim-template/vim-slim
+
 ==============================================================================
 SYNTAX CHECKERS FOR SML                               *syntastic-checkers-sml*
 
diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index 06d60cc9..9c86359e 100644
--- a/plugin/syntastic.vim
+++ b/plugin/syntastic.vim
@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:_SYNTASTIC_START
 endif
 
-let g:_SYNTASTIC_VERSION = '3.8.0-51'
+let g:_SYNTASTIC_VERSION = '3.8.0-52'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1