diff --git a/plugins/hosts/bsd/cap/nfs.rb b/plugins/hosts/bsd/cap/nfs.rb
index b154ad19c..9fd1f7ef8 100644
--- a/plugins/hosts/bsd/cap/nfs.rb
+++ b/plugins/hosts/bsd/cap/nfs.rb
@@ -137,7 +137,7 @@ module VagrantPlugins
           user = Process.uid
 
           File.read("/etc/exports").lines.each do |line|
-            if id = line[/^# VAGRANT-BEGIN:( #{user})? ([\.\/A-Za-z0-9-_]+?)$/, 2]
+            if id = line[/^# VAGRANT-BEGIN:( #{user})? ([\.\/A-Za-z0-9\-_]+?)$/, 2]
               if valid_ids.include?(id)
                 logger.debug("Valid ID: #{id}")
               else