diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index b882d18b..94b141ac 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 = '3.7.0-225'
+let g:_SYNTASTIC_VERSION = '3.7.0-226'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1
diff --git a/plugin/syntastic/registry.vim b/plugin/syntastic/registry.vim
index bcfd5c63..a24e283a 100644
--- a/plugin/syntastic/registry.vim
+++ b/plugin/syntastic/registry.vim
@@ -339,7 +339,10 @@ endfunction " }}}2
 
 " Check for obsolete variable g:syntastic_<filetype>_checker
 function! g:SyntasticRegistry._checkDeprecation(filetype) abort " {{{2
-    if exists('g:syntastic_' . a:filetype . '_checker') && !exists('g:syntastic_' . a:filetype . '_checkers')
+    if exists('g:syntastic_' . a:filetype . '_checker') &&
+        \ !exists('g:syntastic_' . a:filetype . '_checkers') &&
+        \ type(g:syntastic_{a:filetype}_checker) == type('')
+
         let g:syntastic_{a:filetype}_checkers = [g:syntastic_{a:filetype}_checker]
         call syntastic#log#oneTimeWarn('variable g:syntastic_' . a:filetype . '_checker is deprecated')
     endif