diff --git a/test/rubygems/test_gem_specification.rb b/test/rubygems/test_gem_specification.rb
index 69c553f14b..28b4d5e72c 100644
--- a/test/rubygems/test_gem_specification.rb
+++ b/test/rubygems/test_gem_specification.rb
@@ -804,7 +804,10 @@ dependencies: []
       end
 
       full_path.taint
-      loader = Thread.new { $SAFE = 1; Gem::Specification.load full_path }
+      loader = Thread.new do
+        $SAFE = 1
+        Gem::Specification.load full_path
+      end
       spec = loader.value
 
       @a2.files.clear