diff --git a/test/ruby/test_struct.rb b/test/ruby/test_struct.rb
index a451e400cb..3d727adf04 100644
--- a/test/ruby/test_struct.rb
+++ b/test/ruby/test_struct.rb
@@ -544,7 +544,7 @@ module TestStruct
 
       1_000.times(&code)
     PREP
-      300_000.times(&code)
+      50_000.times(&code)
     CODE
   end