diff --git a/src/ruby/end2end/grpc_class_init_client.rb b/src/ruby/end2end/grpc_class_init_client.rb
index b9e3d6054f6..c35719a71fd 100755
--- a/src/ruby/end2end/grpc_class_init_client.rb
+++ b/src/ruby/end2end/grpc_class_init_client.rb
@@ -41,7 +41,7 @@ def run_gc_stress_test(test_proc)
   GC.enable
   construct_many(test_proc)
 
-  GC.start(full_mark: true, immediate_sweep: true)
+  GC.start
   construct_many(test_proc)
 end