diff --git a/chromeos-dbus-bindings/proxy_generator.h b/chromeos-dbus-bindings/proxy_generator.h
index ba9a224..56fce06 100644
--- a/chromeos-dbus-bindings/proxy_generator.h
+++ b/chromeos-dbus-bindings/proxy_generator.h
@@ -118,6 +118,14 @@
                                  const std::string& interface_name,
                                  IndentedText* text);
 
+  // Generates the MOCK_METHOD entry for the given arguments handling methods
+  // with more than 10 arguments.
+  static void AddMockMethodDeclaration(
+      const std::string& method_name,
+      const std::string& return_type,
+      const std::vector<std::string>& arguments,
+      IndentedText* text);
+
   // Generates a mock for the signal handler registration method.
   static void AddSignalHandlerRegistrationMock(
       const Interface::Signal& signal,