diff --git a/test/uri/test_generic.rb b/test/uri/test_generic.rb
index 5a1021fe17..b226b2278b 100644
--- a/test/uri/test_generic.rb
+++ b/test/uri/test_generic.rb
@@ -911,7 +911,7 @@ class URI::TestGeneric < Test::Unit::TestCase
 
     def shift
       return nil if @h.empty?
-      kd, (k, v) = @h.shift
+      _kd, (k, v) = @h.shift
       [k, v]
     end