diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index cd5e196d..84f110b5 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 = '3.7.0-175'
+let g:_SYNTASTIC_VERSION = '3.7.0-176'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1
diff --git a/syntax_checkers/asl/iasl.vim b/syntax_checkers/asl/iasl.vim
index cb87e052..c7a3fcaa 100644
--- a/syntax_checkers/asl/iasl.vim
+++ b/syntax_checkers/asl/iasl.vim
@@ -18,10 +18,10 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_asl_iasl_GetLocList() dict
-    let tmpdir = syntastic#util#tmpdir()
+    let tmpdir = syntastic#util#tmpdir() . syntastic#util#slash()
     let makeprg = self.makeprgBuild({
         \ 'args': '-vi',
-        \ 'args_after': '-p ' . tmpdir })
+        \ 'args_after': ['-p ', tmpdir] })
 
     let errorformat =
         \ '%f(%l) : %trror    %n - %m,' .