diff --git a/syntax/nim.vim b/syntax/nim.vim
index cb1c9de..7489ee1 100644
--- a/syntax/nim.vim
+++ b/syntax/nim.vim
@@ -156,7 +156,7 @@ syn sync match nimSync grouphere NONE "):$"
 syn sync maxlines=200
 syn sync minlines=2000
 
-if v:version >= 508 || !exists("did_nim_syn_inits")
+if v:version >= 508 || !exists('did_nim_syn_inits')
   if v:version <= 508
     let did_nim_syn_inits = 1
     command -nargs=+ HiLink hi link <args>
@@ -200,5 +200,5 @@ if v:version >= 508 || !exists("did_nim_syn_inits")
   delcommand HiLink
 endif
 
-let b:current_syntax = "nim"
+let b:current_syntax = 'nim'