diff --git a/lib/parser/builders/default.rb b/lib/parser/builders/default.rb
index 1fd122d40..636dcaa67 100644
--- a/lib/parser/builders/default.rb
+++ b/lib/parser/builders/default.rb
@@ -524,7 +524,7 @@ def pair_label(key_t)
 
       ident = n(:ident, [ value(key_t).to_sym ], Source::Map::Variable.new(value_l))
       value = accessible(ident)
-      result = pair_keyword(key_t, value)
+      pair_keyword(key_t, value)
     end
 
     def kwsplat(dstar_t, arg)