diff --git a/examples/ruby/greeter_client.rb b/examples/ruby/greeter_client.rb
index e6cb4bad33ebd05909a45175c3159401829de80e..cb4aa195e7741ff5fbcb1c25d44bb9bfb5f55dfe 100755
--- a/examples/ruby/greeter_client.rb
+++ b/examples/ruby/greeter_client.rb
@@ -41,7 +41,7 @@ require 'grpc'
 require 'helloworld_services'
 
 def main
-  stub = Helloworld::Greeter::Stub.new('localhost:50051')
+  stub = Helloworld::Greeter::Stub.new('localhost:50051', :this_channel_is_insecure)
   user = ARGV.size > 0 ?  ARGV[0] : 'world'
   message = stub.say_hello(Helloworld::HelloRequest.new(name: user)).message
   p "Greeting: #{message}"
diff --git a/examples/ruby/route_guide/route_guide_client.rb b/examples/ruby/route_guide/route_guide_client.rb
index baef0e502b535655256750cfd1b82f36d7059364..26e3a8614e8380c1462e0a6b905e68a32d80c699 100755
--- a/examples/ruby/route_guide/route_guide_client.rb
+++ b/examples/ruby/route_guide/route_guide_client.rb
@@ -147,7 +147,7 @@ def run_route_chat(stub)
 end
 
 def main
-  stub = RouteGuide::Stub.new('localhost:50051')
+  stub = RouteGuide::Stub.new('localhost:50051', :this_channel_is_insecure)
   run_get_feature(stub)
   run_list_features(stub)
   run_route_chat(stub)