diff --git a/autoload/syntastic/c.vim b/autoload/syntastic/c.vim
index ac54186f..0784a23b 100644
--- a/autoload/syntastic/c.vim
+++ b/autoload/syntastic/c.vim
@@ -277,7 +277,8 @@ endfunction
 function! syntastic#c#CheckRuby()
     if executable('ruby')
         if !has_key(s:cflags, 'ruby')
-            let s:cflags['ruby'] = system('ruby -r rbconfig -e ''puts Config::CONFIG["archdir"]''')
+            let s:cflags['ruby'] = system('ruby -r rbconfig -e ' .
+                \ '''puts RbConfig::CONFIG["rubyhdrdir"] || RbConfig::CONFIG["archdir"]''')
             let s:cflags['ruby'] = substitute(s:cflags['ruby'], "\n", '', '')
             let s:cflags['ruby'] = ' -I' . s:cflags['ruby']
         endif
diff --git a/doc/syntastic.txt b/doc/syntastic.txt
index 0c95ab7c..4f3645eb 100644
--- a/doc/syntastic.txt
+++ b/doc/syntastic.txt
@@ -153,6 +153,10 @@ current filetype is set to passive. See |'syntastic_mode_map'| for more info.
 Output info about what checkers are available and in use for the current
 filetype.
 
+:SyntasticReset                                              *:SyntasticReset*
+
+Resets the list of errors and turns off all error notifiers.
+
 
 ==============================================================================
 4. Global Options                                   *syntastic-global-options*
diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index b603149a..514c6c18 100644
--- a/plugin/syntastic.vim
+++ b/plugin/syntastic.vim
@@ -78,6 +78,7 @@ command! SyntasticToggleMode call s:ToggleMode()
 command! -nargs=? -complete=custom,s:CompleteCheckerName SyntasticCheck call s:UpdateErrors(0, <f-args>) <bar> call s:Redraw()
 command! Errors call s:ShowLocList()
 command! SyntasticInfo call s:registry.echoInfoFor(s:CurrentFiletypes())
+command! SyntasticReset call s:ClearCache() | call s:notifiers.refresh(g:SyntasticLoclist.New([]))
 
 highlight link SyntasticError SpellBad
 highlight link SyntasticWarning SpellCap