diff --git a/test/rubygems/test_gem_dependency_installer.rb b/test/rubygems/test_gem_dependency_installer.rb
index 8378d85bdf..56b84160c4 100644
--- a/test/rubygems/test_gem_dependency_installer.rb
+++ b/test/rubygems/test_gem_dependency_installer.rb
@@ -849,7 +849,6 @@ class TestGemDependencyInstaller < Gem::TestCase
     Gem.clear_paths
 
     Gem.done_installing do |installer, specs|
-      done_installing_ran = true
       refute_nil installer
       assert_equal [@b1], specs
     end