1 files changed, 1 insertions, 1 deletions
diff --git a/tool/mkconfig.rb b/tool/mkconfig.rb
index 7e943f3c21..e5203c4d2a 100755
--- a/tool/mkconfig.rb
+++ b/tool/mkconfig.rb
@@ -128,7 +128,7 @@ File.foreach "config.status" do |line|
         val.sub!(/universal/, %q[#{arch && universal[/(?:\A|\s)#{Regexp.quote(arch)}=(\S+)/, 1] || '\&'}])
       end
     end
-    v = "  CONFIG[\"#{name}\"] #{win32 && vars[name] ? '<< "\n"' : '='} #{val}\n"
+    v = "  CONFIG[\"#{name}\"] #{win32 && vars[name] ? '<< "\n" +' : '='} #{val}\n"
     vars[name] = true
     if fast[name]
       v_fast << v