Allow reserved metadata to be propagated between calls
diff --git a/src/ruby/spec/channel_spec.rb b/src/ruby/spec/channel_spec.rb
index 9081f0e..25cefcd 100644
--- a/src/ruby/spec/channel_spec.rb
+++ b/src/ruby/spec/channel_spec.rb
@@ -117,7 +117,7 @@
       deadline = Time.now + 5
 
       blk = proc do
-        ch.create_call(cq, 'dummy_method', nil, deadline)
+        ch.create_call(cq, nil, nil, 'dummy_method', nil, deadline)
       end
       expect(&blk).to_not raise_error
     end
@@ -128,7 +128,7 @@
 
       deadline = Time.now + 5
       blk = proc do
-        ch.create_call(cq, 'dummy_method', nil, deadline)
+        ch.create_call(cq, nil, nil, 'dummy_method', nil, deadline)
       end
       expect(&blk).to raise_error(RuntimeError)
     end