diff --git a/runtime/autoload/tar.vim b/runtime/autoload/tar.vim
index 3ed34fd..9f96094 100644
--- a/runtime/autoload/tar.vim
+++ b/runtime/autoload/tar.vim
@@ -121,7 +121,7 @@
   if !filereadable(a:tarfile)
 "   call Decho('a:tarfile<'.a:tarfile.'> not filereadable')
    if a:tarfile !~# '^\a\+://'
-    " if its an url, don't complain, let url-handlers such as vim do its thing
+    " if it's an url, don't complain, let url-handlers such as vim do its thing
     redraw!
 "    call Decho("***error*** (tar#Browse) File not readable<".a:tarfile.">")
     echohl Error | echo "***error*** (tar#Browse) File not readable<".a:tarfile.">" | echohl None