diff --git a/test/json/json_common_interface_test.rb b/test/json/json_common_interface_test.rb
index 643d3e92ec..a5d62337e1 100644
--- a/test/json/json_common_interface_test.rb
+++ b/test/json/json_common_interface_test.rb
@@ -209,7 +209,6 @@ class JSONCommonInterfaceTest < Test::Unit::TestCase
     Encoding.default_external = encoding
     yield
   ensure
-    verbose = $VERBOSE
     Encoding.default_external = previous_encoding
     $VERBOSE = verbose
   end