diff --git a/gem/terminalwire-server/lib/terminalwire/server/resource.rb b/gem/terminalwire-server/lib/terminalwire/server/resource.rb
index 51d262f..4679e6c 100644
--- a/gem/terminalwire-server/lib/terminalwire/server/resource.rb
+++ b/gem/terminalwire-server/lib/terminalwire/server/resource.rb
@@ -36,8 +36,8 @@ def read(name)
     end
 
     class STDOUT < Base
-      def puts(data)
-        command("print_line", data: data)
+      def puts(data = nil)
+        command("print_line", data: data.to_s)
       end
 
       def print(data)
diff --git a/spec/integration/resources/stdout_spec.rb b/spec/integration/resources/stdout_spec.rb
index 2b222f5..c4ab027 100644
--- a/spec/integration/resources/stdout_spec.rb
+++ b/spec/integration/resources/stdout_spec.rb
@@ -18,6 +18,14 @@
     it 'prints line with newline to stdout through client' do
       expect { server_stdout.puts("Hello line") }.to output("Hello line\n").to_stdout
     end
+
+    it 'prints a blank line when called with no arguments' do
+      expect { server_stdout.puts }.to output("\n").to_stdout
+    end
+
+    it 'prints a blank line when called with nil' do
+      expect { server_stdout.puts(nil) }.to output("\n").to_stdout
+    end
   end
 
   describe '#flush' do