diff --git a/after/syntax/python.vim b/after/syntax/python.vim
index c64e002..9bdb07e 100644
--- a/after/syntax/python.vim
+++ b/after/syntax/python.vim
@@ -1,18 +1,18 @@
 if g:jedi#show_call_signatures > 0 && has('conceal')
-    " conceal is normal for vim >= 7.3
+    " +conceal is the default for vim >= 7.3
  
     let s:e = g:jedi#call_signature_escape
-    let s:l1 = s:e.'jedi=[^'.s:e.']*'.s:e.'[^'.s:e.']*'.s:e.'jedi'.s:e
-    let s:l2 = s:e.'jedi=\?[^'.s:e.']*'.s:e
-    exe 'syn match jediIgnore "'.s:l2.'" contained conceal'
+    let s:full = s:e.'jedi=.\{-}'.s:e.'.\{-}'.s:e.'jedi'.s:e
+    let s:ignore = s:e.'jedi.\{-}'.s:e
+    exe 'syn match jediIgnore "'.s:ignore.'" contained conceal'
     setlocal conceallevel=2
     syn match jediFatSymbol "*" contained conceal
     syn match jediFat "\*[^*]\+\*" contained contains=jediFatSymbol
     syn match jediSpace "\v[ ]+( )@=" contained
-    exe 'syn match jediFunction "'.s:l1.'" keepend extend '
+    exe 'syn match jediFunction "'.s:full.'" keepend extend '
                 \ .' contains=jediIgnore,jediFat,jediSpace'
                 \ .' containedin=pythonComment,pythonString,pythonRawString'
-    unlet! s:e s:l1 s:l2
+    unlet! s:e s:full s:ignore
  
     hi def link jediIgnore Ignore
     hi def link jediFatSymbol Ignore