diff --git a/autoload/xolox/misc/os.vim b/autoload/xolox/misc/os.vim
index 31e1232..c5915c4 100644
--- a/autoload/xolox/misc/os.vim
+++ b/autoload/xolox/misc/os.vim
@@ -18,7 +18,7 @@ function! xolox#misc#os#is_mac() " {{{1
       let s:is_mac = 1
     elseif !xolox#misc#os#is_win()
       " Otherwise we check the output of `uname' to avoid false negatives.
-      let result = xolox#misc#os#exec({'command': 'uname', 'check': 0})
+      silent let result = xolox#misc#os#exec({'command': 'uname', 'check': 0})
       if result['exit_code'] == 0 && get(result['stdout'], 0, '') == 'Darwin'
         let s:is_mac = 1
       endif