diff --git a/autoload/syntastic/log.vim b/autoload/syntastic/log.vim
index 6fcc1220..aba88197 100644
--- a/autoload/syntastic/log.vim
+++ b/autoload/syntastic/log.vim
@@ -10,6 +10,33 @@ if !exists("g:syntastic_debug")
     let g:syntastic_debug = 0
 endif
 
+let s:global_options = [
+    \ 'syntastic_aggregate_errors',
+    \ 'syntastic_always_populate_loc_list',
+    \ 'syntastic_auto_jump',
+    \ 'syntastic_auto_loc_list',
+    \ 'syntastic_check_on_open',
+    \ 'syntastic_check_on_wq',
+    \ 'syntastic_debug',
+    \ 'syntastic_delayed_redraws',
+    \ 'syntastic_echo_current_error',
+    \ 'syntastic_enable_balloons',
+    \ 'syntastic_enable_highlighting',
+    \ 'syntastic_enable_signs',
+    \ 'syntastic_error_symbol',
+    \ 'syntastic_filetype_map',
+    \ 'syntastic_full_redraws',
+    \ 'syntastic_id_checkers',
+    \ 'syntastic_ignore_files',
+    \ 'syntastic_loc_list_height',
+    \ 'syntastic_mode_map',
+    \ 'syntastic_quiet_warnings',
+    \ 'syntastic_reuse_loc_lists',
+    \ 'syntastic_stl_format',
+    \ 'syntastic_style_error_symbol',
+    \ 'syntastic_style_warning_symbol',
+    \ 'syntastic_warning_symbol' ]
+
 let s:deprecation_notices_issued = []
 
 " Public functions {{{1
@@ -97,34 +124,7 @@ function! syntastic#log#debugDump(level)
         return
     endif
 
-    let vars = [
-        \ 'syntastic_aggregate_errors',
-        \ 'syntastic_always_populate_loc_list',
-        \ 'syntastic_auto_jump',
-        \ 'syntastic_auto_loc_list',
-        \ 'syntastic_check_on_open',
-        \ 'syntastic_check_on_wq',
-        \ 'syntastic_debug',
-        \ 'syntastic_delayed_redraws',
-        \ 'syntastic_echo_current_error',
-        \ 'syntastic_enable_balloons',
-        \ 'syntastic_enable_highlighting',
-        \ 'syntastic_enable_signs',
-        \ 'syntastic_error_symbol',
-        \ 'syntastic_filetype_map',
-        \ 'syntastic_full_redraws',
-        \ 'syntastic_id_checkers',
-        \ 'syntastic_ignore_files',
-        \ 'syntastic_loc_list_height',
-        \ 'syntastic_mode_map',
-        \ 'syntastic_quiet_warnings',
-        \ 'syntastic_reuse_loc_lists',
-        \ 'syntastic_stl_format',
-        \ 'syntastic_style_error_symbol',
-        \ 'syntastic_style_warning_symbol',
-        \ 'syntastic_warning_symbol' ]
-
-    call syntastic#log#debugShowVariables(a:level, vars)
+    call syntastic#log#debugShowVariables(a:level, s:global_options)
 endfunction
 
 " Private functions {{{1
diff --git a/plugin/syntastic/loclist.vim b/plugin/syntastic/loclist.vim
index 42b67a75..5e425789 100644
--- a/plugin/syntastic/loclist.vim
+++ b/plugin/syntastic/loclist.vim
@@ -11,8 +11,7 @@ function! g:SyntasticLoclist.New(rawLoclist)
     let newObj = copy(self)
     let newObj._quietWarnings = g:syntastic_quiet_warnings
 
-    let llist = copy(a:rawLoclist)
-    let llist = filter(llist, 'v:val["valid"] == 1')
+    let llist = filter(copy(a:rawLoclist), 'v:val["valid"] == 1')
 
     for e in llist
         if empty(e['type'])
@@ -131,10 +130,9 @@ function! g:SyntasticLoclist.filter(filters)
     let rv = []
 
     for error in self._rawLoclist
-
         let passes_filters = 1
         for key in keys(a:filters)
-            if error[key] !=? a:filters[key]
+            if get(error, key, '') !=? a:filters[key]
                 let passes_filters = 0
                 break
             endif